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The following is a list of Unnamed USS Enterprise operations division personnel:

2250s - 2265

Communications crew woman

File:USS Enterprise communications crewman, 2254.jpg

A female operations division crewman

This female crewman sat at the communications station to the right of the viewscreen in 2254. Captain Christopher Pike and CPO Garison checked the SS Columbia's follow-up message that printed out on paper from her console and was also present when the Talosians took control of the vessel. (TOS: "The Cage")

This crew woman was played by an unknown actress.
Her lack of rank insignia determines she was not an officer or chief, but rather enlisted. Although she wears the division patch for command, her uniform color indicates she's operations division. The function of her station, located between the viewscreen and Spock's station, was never alluded to, although it seemed to include various library computer functions and controls later associated with the science station and was scripted, in the second revised final draft, as the communications station.

Crewman #1

This crewman served aboard the Enterprise for over a decade, serving under both Captain's Pike and Kirk.

He was present on the bridge when the Enterprise picked up the fake distress signal from Talos IV in 2254, where he sat at the science station, and again when Talosians took over control of the vessel. (TOS: "The Cage")

He was later present on the bridge when Lee Kelso contacted Kirk in the briefing lounge in 2265. A short time later, he departed the bridge after Kirk, Spock and Mitchell entered from the turbolift, following the discovery of the disaster recorder from the SS Valiant. (TOS: "Where No Man Has Gone Before")

Footage of his experience aboard the Enterprise under Captain Pike during the original visit to Talos IV, from 13 years prior, was transmitted from that planet during Spock's fictional court martial aboard the same ship in 2267. (TOS: "The Menagerie, Part I", "The Menagerie, Part II")

Played by an unknown actor.

Crewman #2

This crewman served aboard the Enterprise for over a decade, serving under both Captain's Pike and Kirk.

He was operating the life support systems station on the bridge when the Enterprise received the distress call from the SS Columbia in 2254.

When Spock later decided to cut his losses and ordered the Enterprise to escape orbit of Talos IV, and it was discovered that that ship's controls had gone dead, Jose Tyler had this crewman double-check the systems, in turn, Tyler relayed a response to Spock, confirming that "There's nothing. Every system aboard is fading out!" (TOS: "The Cage")

He was later present on the bridge operating the science station when the Enterprise left Delta Vega in 2265. (TOS: "Where No Man Has Gone Before")

Footage of his experience aboard the Enterprise under Captain Pike during the original visit to Talos IV, from 13 years prior, was transmitted from that planet during Spock's fictional court martial aboard the same ship in 2267. (TOS: "The Menagerie, Part I", "The Menagerie, Part II")

He was played by an unknown actor.

Engineer #1

File:USS Enterprise bridge engineer 1, 2254.jpg

Bridge engineer

This engineer served aboard the Enterprise in 2254. He was operating the main engineering station on the bridge when the Enterprise picked up a distress signal, when the ship approached Talos IV, when the ship's power was drained and when the Enterprise was preparing to leave Talos IV. (TOS: "The Cage")

He was played by an unknown actor.

Laser cannon technicians

File:USS Enterprise laser technicians.jpg

Laser cannon technicians

These two technicians assisted in setting up the Laser cannon on the surface of Talos IV in 2254. (TOS: "The Cage")

Both were played by unknown actors.
They were alluded to in the script as simply "first crewman" and "second crewman", and called "laser cannon technicians" on the call sheet.

Transporter technician #1

File:USS Enterprise transporter technician, 2254.jpg

A transporter technician

In 2254, this transporter technician, who wore thick-rimmed glasses, stood at the transporter console next to Transporter Chief Pitcairn. (TOS: "The Cage")

This transporter technician had no lines and was played by an unknown actor.
His appearance is the first rare occurrence of a 23rd century Human wearing glasses, with a second appearance of glasses seen in TAS: "The Terratin Incident". The next time glasses were mentioned was in Star Trek II: The Wrath of Khan, wherein it is implied that wearing corrective eye wear is rare because of vision-supporting drugs and treatments.
His character was named Yamata (β) in "The Rift" and given the first name "Sam" in the novel Child of Two Worlds.

2260s - early 2270s

Crewmen

Crewman #3

File:USS Enterprise operations crew woman 1.jpg

An operations division crew woman

This crew woman served on the Enterprise during the ship's encounter with Balok and the First Federation in 2266. (TOS: "The Corbomite Maneuver")

Played by an unknown actress.

Crewman #4

File:USS Enterprise operations crew woman 2.jpg

An operations division crew woman

This crew woman was present at the recreation room when Uhura performed the song "Beyond Antares" in 2266. Later, she was present among the audience at the Karidian Company of Players' performance of Hamlet. (TOS: "The Conscience of the King")

Played by an unknown actress.

Crewman #5

File:USS Enterprise operations crewman 3.jpg

An operations division crewman

This crewman was a member of the audience at the Karidian Company of Players' performance of Hamlet in 2266. (TOS: "The Conscience of the King")

Played by an unknown actor.

Crewman #6

File:USS Enterprise crewmember in window.jpg

A crewmember in a window

This crew woman passed a window of the Enterprise when the ship was in orbit of Starbase 11. (TOS-R: "Court Martial")

This crewmember was played by Denise Okuda, who received no on-screen credit, and appeared only in the remastered version of the episode.

Crewman #7

This crew woman served aboard the Enterprise in 2267.

She served as the court reporter who sat in on Spock's court martial following his abduction of Captain Pike from Starbase 11. (TOS: "The Menagerie, Part I")

Later that year, she served as a steward at dinner when Enterprise officers were privileged to dine with the 20th century despot Khan Noonien Singh, in 2267. She was later captured and seated in a prisoner's row with Leslie, Brent, Hadley and others, forced to watch Khan's murderous spectacle of Captain Kirk on the viewscreen. (TOS: "Space Seed")

She was played by Jan Reddin.

Crewman #8

File:USS Enterprise operations engineering technician 2.jpg

An engineering technician

This engineering crewman deserted the ship and left for the Omicron Ceti III colony, under the influence of the pod plant spores, in 2267. (TOS: "This Side of Paradise")

Played by an unknown actor.

Crewman #9

File:USS Enterprise crew woman 14, operations.jpg

An operations division crew woman

This crew woman served aboard the Enterprise in 2267.

She was stationed on the bridge during the Enterprise's visit to Janus VI. (TOS: "The Devil in the Dark")

The same year, she took the tape reader Kirk used to decode the directive tape notifying the Enterprise to suspect a surprise attack, a prelude to the Federation-Klingon War that broke out near Organia. She was later on the bridge as the Enterprise departed Organia. (TOS: "Errand of Mercy")

Played by an unknown actress.

Crewman #10

File:USS Enterprise operations crew woman 3.jpg

An operations division crew woman

This crew woman was present on the bridge when the Enterprise visited Deneva in 2267. (TOS: "Operation -- Annihilate!")

Played by an unknown actress.

Crewman #11

File:USS Enterprise operations crew woman 4.jpg

An operations division crew woman

This crew woman was present on the bridge when the Enterprise visited Deneva in 2267. She was present when Spock rushed in, under the influence of the flying parasites. (TOS: "Operation -- Annihilate!")

Played by an unknown actress.

Crewman #12

USS Enterprise operations crew woman 5

An operations division crew woman

This crew woman was present on the bridge during the encounter with a Klingon battle cruiser near Capella IV in 2267. (TOS: "Friday's Child")

She was also working on the bridge in 2268, when the Enterprise encountered an Eymorg starship. (TOS: "Spock's Brain")

Played by an unknown actress.
Her appearance in "Spock's Brain" was recycled footage from "Friday's Child".

Crewman #13

File:USS Enterprise operations crew woman 6.jpg

An operations division crew woman

This crew woman served on the bridge when the Enterprise visited Vulcan en route to Altair VI in 2267. (TOS: "Amok Time")

Played by an unknown actress

Crewman #14

File:USS Enterprise operations crew woman 7.jpg

An operations division crew woman

This crew woman was present in a corridor during the same time, in 2267. (TOS: "Amok Time")

Played by an unknown actress

Crewman #15

File:USS Enterprise operations crew woman 8.jpg

An operations division crew woman

This crew woman was present in the briefing room, after the landing party returned from Gamma Hydra IV in 2267. (TOS: "The Deadly Years")

Played by an unknown actress.

Crewman #16

File:USS Enterprise operations crewman 4.jpg

An operations division crewman

This crewman participated in the fight between Enterprise crewmembers and Koloth's Klingon crewmen at Deep Space Station K-7, and were interrogated by Kirk afterwards, in 2268. After he was released from quarters confinement, he was present in the tribble-infected recreation room, when Kirk and Spock visited it. (TOS: "The Trouble with Tribbles")

In the alternate timeline created by Arne Darvin's visit from 2373, he was not present at the interrogation, and was replaced by Doctor Julian Bashir. (DS9: "Trials and Tribble-ations")

The same year, he was present on a corridor during red alert when the Enterprise encountered Bele's spaceship. (TOS: "Let That Be Your Last Battlefield")

The operations crewman was played by an unknown actor. His appearance in "Let That Be Your Last Battlefield" is via recycled footage from "The Trouble with Tribbles".

Crewman #17

USS Enterprise operations yeoman 5

A female yeoman

This crew woman was present on the bridge in 2268, when the Enterprise received news about the destruction of the USS Intrepid. (TOS: "The Immunity Syndrome")

Played by an unknown actress.

Crewman #18

File:USS Enterprise operations crew woman 11.jpg

An operations division crew woman

This crew woman was one of the department heads present in the briefing room when the Enterprise encountered a giant single cell creature in 2268. She was there, on the order of Captain Kirk, with her reports on the zone of darkness they were in. (TOS: "The Immunity Syndrome")

Played by an unknown actress.

Crewman #19

This crew woman was present on the bridge in 2268, when the Kelvans attempted to hijack the Enterprise and divert it to the Andromeda Galaxy. She was considered one of many non-essential personnel. Kelvan Drea neutralized and reduced her into a dehydrated porous cuboctahedron solid, the size of a Human fist, composed of her base minerals which represented the "distilled" essence of her being. She was reconstituted after the four commanding officers, who were not neutralized, regained control of the ship. (TOS: "By Any Other Name")

Played by an unknown actress.

Crewman #20

File:USS Enterprise operations crew woman 9.jpg

An operations division crew woman

This crew woman was present in a corridor, when Captain Kirk announced Ambassador Kollos' arrival to the ship and requested corridors to be emptied, in 2268. (TOS: "Is There in Truth No Beauty?")

Played by an unknown actress.

Crewman #21

File:USS Enterprise operations crew woman 13.jpg

An operations division crew woman

This crew woman served as communications officer on the bridge when the Enterprise visited Minara II in 2268, and later Scalos in the same year. (TOS: "The Empath", "Wink of an Eye")

Played by an unknown actress. Her appearance in "Wink of an Eye" is recycled footage from "The Empath".

Crewman #22

File:USS Enterprise operations crewman 5.jpg

An operations division crewman

This crewman was present at Kirk's memorial service, when the Captain was presumed dead on the USS Defiant, in 2268 where he helped restrain a berserk crewman. (TOS: "The Tholian Web")

Played by an unknown actor.

Crewman #23

File:USS Enterprise operations crewman 6.jpg

An operations crewman

This operations division crewman was on duty on the Enterprise's bridge when Scotty was in command during its orbit of Platonius. (TOS: "Plato's Stepchildren")

The crewman was portrayed by an unknown actor.

Crewman #24 – 25

These crew women were present among the audience when Doctor Sevrin's followers performed a jam session on the Enterprise in 2269. (TOS: "The Way to Eden")

Crewman #26

File:USS Enterprise operations crewman 9.jpg

An operations division crewman

This crewman was present in the recreation room in 2269, when the crew got infected by Harry Mudd's love potion crystals. (TAS: "Mudd's Passion")

Crewman #27

File:USS Enterprise operations crew woman 17.jpg

An operations division crew woman

This crew woman was transported to Megas-Tu by its inhabitants, and held on trial in the recreation of Salem, Massachusetts. (TAS: "The Magicks of Megas-Tu")

Galley chef

USS Enterprise galley chef

The galley chef

The chef of the ship's galley was in charge of reconstituting food and distributing them via the food slots.

In 2266, the chef was amazed when he witnessed his reconstituted meatloaf turned into real turkeys, a gift to the crew from Charlie Evans. He reported this immediately to Captain James T. Kirk, who was skeptical at first. (TOS: "Charlie X")

Gene Roddenberry provided the voice file info of the galley chef over the intercom in his only performance in Star Trek. During the exchange, Kirk addressed the character as "chief", rather than "chef".
The portrayal of the chef in person was by an unknown actor.

Yeoman #1

File:USS Enterprise operations yeoman 1.jpg

Female yeoman

This yeoman regularly worked on the bridge, often at the engineering station, or serving food and beverages to the bridge officers. (TOS: "The Man Trap", "Wink of an Eye")

She sat at the life support systems station while the Enterprise investigated the space amoeba in 2268. (TOS: "The Immunity Syndrome")

She attended the memorial service for Kirk after it was believed he died aboard the USS Defiant. (TOS: "The Tholian Web")

She sat at the engineering station on the bridge when the Enterprise was in orbit of Beta XII-A and later while it travelled toward the galactic barrier. (TOS: "Day of the Dove")

She brought Montgomery Scott a damage report while he was in command of the ship and following the "attack" of Parmen. (TOS: "Plato's Stepchildren")

File:USS Enterprise female patient.jpg

A female patient

Later, when the ship was invaded by the Scalosians, she was on the bridge delivering beverages. Kirk asked her, "Yeoman, is that coffee available, or have those circuits been damaged as well?" Unbeknownst to either of them, the coffee had been tainted by the Scalosians. (TOS: "Wink of an Eye")

She was later a patient being examined by Doctor McCoy in sickbay when Kara caused the entire crew to become unconscious in 2268. (TOS: "Spock's Brain") She was also being seen when Dr. Sevrin and his followers hijacked the Enterprise. (TOS: "The Way to Eden")

This yeoman was portrayed by regular background actress Jeannie Malone.
Appearances

Yeoman #2

File:USS Enterprise operations yeoman 4.jpg

A female yeoman

This yeoman was stationed on the bridge in 2267 when Hikaru Sulu was injured by an exploding helm console. She cradled Sulu until Doctor Leonard McCoy arrived to administer medical aid. (TOS: "The City on the Edge of Forever")

Played by an unknown actress. The novel The Fire and the Rose gives her name as Takayama (β).

Yeoman #3

File:Enterprise operations yeoman 5.png

A female yeoman

This yeoman was serving food and drinks to James Kirk, Spock, Leonard McCoy, Montgomery Scott, Miranda Jones, and Lawrence Marvick in the officers' lounge in 2268. (TOS: "Is There in Truth No Beauty?")

Played by an unknown actress.

Yeoman #4

File:USS Enterprise operations yeoman 2.jpg

Male yeoman

This male yeoman was under Leonard McCoy's care in sickbay in 2270.

McCoy informed the yeoman that he was going to be getting a few days' bed rest, for an unknown injury or ailment, despite the fact that the doctor didn't think he deserved it. Before the yeoman had a chance to acknowledge his prescription, he was startled by McCoy's sudden abduction from the ship by Kukulkan. (TAS: "How Sharper Than a Serpent's Tooth")

The novelization of "How Sharper Than a Serpent's Tooth" in Star Trek Log 6 identifies him as Jo van Dreenan (β), security specialist.

Engineers

Engineer #2

This engineering crewman was part of the repair party consisting of the engineering staff that assisted Lee Kelso on Delta Vega in regenerating the main engines aboard the Enterprise. His role was to help safely bypass the mining station's fuel bins which involved rearranging a number of cables in the control room. Following the success of repair, he returned to the ship with a toolbox and Captain Kirk later noted him a commendation for his work in the captain's log. (TOS: "Where No Man Has Gone Before")

In 2266, he was present on a corridor, repairing a circuit, when Yeoman Janice Rand, carrying a plate of food, then the M-113 creature, posing as Crewman Green, passed him by. (TOS: "The Man Trap")

The same year, he was helping Lieutenant Commander Montgomery Scott to open the locked door to the engineering control room, which was taken over by Lieutenant Kevin Riley while affected by the Psi 2000 virus. Unable to open the door by any traditional means, Scott had this crewman run up to his office and pull the plans for the bulkhead so that Scott could phaser in to access the door control panels. (TOS: "The Naked Time")

Played by an unknown actor.

Engineer #3

File:USS Enterprise operations engineer 3.jpg

Engineer crewman

This engineering crewman served on the Enterprise in 2266.

During the encounter with the First Federation, he was testing the circuitry on the ship when he was tossed about with the destruction of Balok's cube and from the sheer force of the Enterprise breaking away from Balok's pilot vessel. (TOS: "The Corbomite Maneuver")

He was present on a corridor when Captain Kirk passed him by, during the Enterprise's visit to M-113 the same year. (TOS: "The Man Trap")

Still the same year, he was present on a corridor, this time wearing a command division uniform and lieutenant stripes, when an angry Charles Evans clashed into him. (TOS: "Charlie X")

Again, he was on a corridor when he was passed by Kirk's android duplicate when the ship visited Exo III. (TOS: "What Are Little Girls Made Of?")

The engineering crewman was played by an unknown actor. His appearance in "What Are Little Girls Made Of?" is via recycled footage from "The Man Trap".

Engineer #4

File:USS Enterprise maintenance engineer.jpg

Maintenance engineer

This engineering crewman was present on a corridor during red alert when the Enterprise visited M-113 in 2266. (TOS: "The Man Trap")

Played by an unknown actor. His appearance was recycled footage from an unused shot from "Where No Man Has Gone Before".

Engineer #5

File:USS Enterprise operations engineering technician 3.jpg

An engineering technician

This engineering crewman was present on the bridge when the Enterprise was searching for the wrecked USS Constellation. He was later called to the bridge to repair the damage, when the Enterprise encountered the Planet killer in 2267. (TOS: "The Doomsday Machine")

Played by an unknown actor.

Engineer #6

File:USS Enterprise operations engineering technician 4.jpg

An engineering technician

This engineering crewman was also called to the bridge to repair the damage, when the Enterprise encountered the Planet killer in 2267. (TOS: "The Doomsday Machine")

Later the same year, he was again called to the bridge when the machine-god Vaal of Gamma Trianguli VI rendered the Enterprise helpless. (TOS: "The Apple")

Played by an unknown actor.

Engineer #7

File:USS Enterprise operations engineering technician 11.jpg

An engineering technician

This engineering technician initially served as a security guard and was present on the bridge when the Enterprise found the remains of the USS Constellation. (TOS: "The Doomsday Machine")

He was later exiting a Jefferies tube when the crew was sedated by the intruder Kara in 2268. (TOS: "Spock's Brain")

The engineering technician was played by an unknown actor. He can also be seen in "The Way to Eden" when Dr. Sevrin and his followers hijacked the Enterprise via stock footage from "Spock's Brain".

Engineer #8

File:USS Enterprise operations engineering technician 7.jpg

An engineering technician

This crewman served as an engineer in 2267.

That year he was present in main engineering when Nomad had entered engineering, where he was informed by Scott to notify Captain Kirk of Nomad's presence. When Nomad began to make unsanctioned repairs to the ship's warp drive, he exclaimed to Scott the increasing warp factor, at one point noting that they had reached Warp 11.

Later, he was knocked out by Nomad, during Nomad's return to engineering. Kirk noticed his slumped over his console and even checked his pulse before finally confronting Nomad. Following the entry of Spock and Scott into engineering, two additional crewman following, removing this crewman from his chair and placing him on the deck. (TOS: "The Changeling")

Played by Meade Martin. He was identified in the script as "Crewman #1" and credited in the end credits as "Crewman".

Engineer #9

File:USS Enterprise operations engineering technician 9.jpg

An engineering technician

This engineering crewman was working in main engineering when the android Norman seized contol of the ship, in 2268. (TOS: "I, Mudd")

Played by Bob Orrison.

Engineer #10

File:USS Enterprise operations engineering technician 10.jpg

An engineering technician

This engineering crewman came out of a Jefferies tube on a corridor, when Ambassador Sarek and his wife, Amanda Grayson were taken on a tour of the Enterprise, in 2268. (TOS: "Journey to Babel")

Played by an unknown actor.

Engineer #11

USS Enterprise operations engineer 5

An engineer

This engineering crewman clashed with Scott in the auxiliary control center, when he was under the powers of Gorgan and the children from Triacus in 2268. (TOS: "And the Children Shall Lead")

The same year, he fought with Larry Marvick in main engineering, when Marvick tried to take over the ship. (TOS: "Is There in Truth No Beauty?")

Also the same year, he was affected by the interspace mental degradation, and went berserk at the memorial service for Captain Kirk and attacked Lieutenant Hadley. He had to be sedated and taken away. (TOS: "The Tholian Web")

Played by Lou Elias.

Engineer #12

File:USS Enterprise operations engineer 6.jpg

An engineer

This engineering crewman sat at the engineering station on the bridge when the Enterprise visited Minara II, in 2268. (TOS: "The Empath")

Played by an unknown actor.

Engineer #13

File:USS Enterprise operations engineer 7.jpg

An engineer

This engineering crewman was affected by the interspace mental degradation and went berserk in main engineering in 2268. (TOS: "The Tholian Web")

Played by Bob Bralver.

Engineer #14

USS Enterprise operations engineer 19

An engineer

This engineering crewman fought with the insane Larry Marvick in 2268. (TOS: "Is There in Truth No Beauty?")

Played by Vince Deadrick.

Engineer #15

File:USS Enterprise operations engineering technician 12.jpg

An engineering technician

This engineering crewman was present in main engineering when the Enterprise encountered the Kalandan outpost in 2268. (TOS: "That Which Survives")

Played by an unknown actor.

Engineer #16 and #17

These two engineering crewmew were members of the audience when Doctor Sevrin's followers performed a jam session on the Enterprise in 2269. (TOS: "The Way to Eden")

Played by unknown actors.

Engineer #18

File:USS Enterprise operations engineer, 2269.jpg

Engineer

This engineering crewman served on the Enterprise in 2269, during the ship's encounter with a magnetic organism near Questar M-17.

After Kirk had ordered Scott to take two of his men to Engineering to arm the ship's self-destruct device in the engineering core and Scott became trapped by the core hatch, this crewman was present to assist. When Kirk gave the order to Scott's engineers to get a cutter beam on the hatch to release Scott, he acknowledged, and was responsible for cutting open the hatch with the cutter. (TAS: "Beyond the Farthest Star")

According to the 10 May 1973 revision of the script, this crewman one of "other engineers" Kirk was addressing in his request. Earlier in the same scene, the script noted that Scott was surrounded by "Engineers and a couple of Security men."

Engineer #19 and #20

File:USS Enterprise operations engineer 20-21 using crowbars.jpg

Engineers

These engineering crewmen tried to use crowbars to force open the door to the recreation room. (TAS: "The Practical Joker")

Engineering lieutenant #1

File:USS Enterprise assistant engineer, 2267.jpg

Assistant engineer

This lieutenant was an assistant to Lieutenant Charlene Masters when she worked to re-energize the dilithium crystals after a galaxy-wide "blink" of non-existence drained the critical components. Lazarus and anti-Lazarus from opposite universes overwhelmed the engineers in separate incidents, each stealing crystals to use against one another. The assistant shared Lt. Master's low opinion of Enterprise's coffee. (TOS: "The Alternative Factor")

Played by Arch Whiting.

Engineering lieutenant #2

PXK reactor

Scott's assistant

This lieutenant assisted Scotty with installing the temporary replacement for the Janus VI colony's missing PXK pergium reactor in 2267. (TOS: "The Devil in the Dark")

This assistant was played by an unknown actor.
According to the end credits, a George E. Allen was credited as "Engineer #1", however, it is unclear which character he represented, with this individual in particular being the only other Enterprise engineer to appear in this episode.

Engineering lieutenant #3

File:USS Enterprise operations engineer 2.jpg

An engineer

This lieutenant sat at the engineering station on the bridge in 2267, when the ship left Organia. (TOS: "Errand of Mercy")

Played by an unknown actor.

Engineering lieutenants #4 and #5

These two lieutenants were working in main engineering, when the crew suddenly began to shrink, while investigating the lost colony Terra 10, in 2269. (TAS: "The Terratin Incident")

Engineering lieutenants #6 and #7

These lieutenants were assigned to rescue McCoy, Sulu, and Uhura who got trapped in the recreation room, when the Enterprise's main computer was infected by a strange energy field, in 2270. (TAS: "The Practical Joker")

The first lieutenant was voiced by James Doohan.

Junior engineer

USS Enterprise engineer junior lieutenant

Junior engineer

This junior engineer was a lieutenant junior grade, who was assigned by Scotty, per the duty roster, to repair a power relay (with a trident scanner) but was surprised to find an ensign and a doctor (actually Miles O'Brien and Julian Bashir from the 24th century) already working on it. The two officers quietly allowed the engineer to take over as it became clear they had no idea what they were doing. Fortunately, he easily accepted Bashir's cover story - that he was doing a study on work-related stress, with O'Brien as his overworked, stressed-out patient - and agreed not to mention the incident, adding that he hoped O'Brien felt better. (DS9: "Trials and Tribble-ations")

Played by Charles Chun. He was described in the script as "a fresh-faced young engineer -- lieutenant, junior grade."
The Star Trek Customizable Card Game gives his name as Lt. Nagata.

Life support systems officer

File:USS Enterprise life support systems officer.jpg

Life support systems officer

This engineering crewman served at the life support systems station on the bridge when the Enterprise when the ship was taken over by an ancient magnetic organism in 2269. After the organism had shut down all life support on Decks 5 and 6, Kirk ordered this officer to get the systems back online. (TAS: "Beyond the Farthest Star")

This individual was identified as the "life support systems officer" in the final draft of the script.

Helmsmen

Helmsman #1

File:USS Enterprise crewman 13, helmsman.jpg

A helmsman

This operations division crewman sat at the helm, during the Klingon affair near Organia in 2267 when Lieutenant Hikaru Sulu was in command. (TOS: "Errand of Mercy")

Played by an unknown actor.
His name was given as Tommy Kovaks (β) between two issues of Star Trek: New Visions, "The Hunger" and "An Unexpected Yesterday".

Helmsman #2

File:USS Enterprise operations helmsman, 2269.jpg

A helmsman

This crewman served as helmsman in 2269, while Sulu had command, when the Enterprise encountered an ancient magnetic organism near Questar M-17. (TAS: "Beyond the Farthest Star")

This was another example of the production inconsistencies found in the series, as this crewman wore an operations division uniform with a command division assignment patch.

Helmsman #3

USS Enterprise operations helmsman 2

A helmsman

This officer served as the helmsman on the Enterprise in 2269, when Lieutenant Hikaru Sulu visited the Shore Leave Planet. (TAS: "Once Upon a Planet")

This was another example of the production inconsistencies found in the series, as this lieutenant wore an operations division uniform with a command division assignment patch.

Officers

Ensign

USS Enterprise operations personnel officer

Personnel officer

In 2267, this female ensign was the personnel officer aboard the Enterprise. She was present, as a witness on Captain Kirk's court martial at Starbase 11. (TOS: "Court Martial")

Played by Nancy Wong.

Lieutenant #1

File:USS Enterprise operations lieutenant 1.jpg

An operations division lieutenant

This male lieutenant was present on the bridge when the Enterprise left Omicron Ceti III in 2267. (TOS: "This Side of Paradise")

Played by an unknown actor. He also played the mirror universe counterpart (presumably) of this character in "Mirror, Mirror".

Lieutenant #2

File:USS Enterprise operations lieutenant 2.jpg

An operations division lieutenant

This female lieutenant was present in the recreation room when the crew got infected with Harry Mudd's love potion crystals in 2269. Under its influence, she enjoyed an amorous Doctor Leonard McCoy's company. (TAS: "Mudd's Passion")

Lieutenant commander #1

File:USS Enterprise operations female lt cmdr 1.jpg

A female lieutenant commander

In 2268, this female lieutenant commander was present at Kirk's memorial service after the captain was presumed killed aboard the USS Defiant. (TOS: "The Tholian Web")

She was played by an unknown actress.

Lieutenant commander #2

File:USS Enterprise operations lieutenant commander 2.jpg

Operations division lieutenant commander

This male lieutenant commander was present at the mess hall when the crew suddenly began to shrink, while investigating the lost colony Terra 10, in 2269. (TAS: "The Terratin Incident")

Commander

USS Enterprise operations commander 1

Commander

In 2268, this commander stood in on a staff meeting after the Enterprise was facing capture by the Romulans when Captain Kirk took the ship into the Romulan Neutral Zone. (TOS: "The Enterprise Incident")

This officer was also present at Kirk's memorial service after the captain was presumed killed aboard the USS Defiant. (TOS: "The Tholian Web")

Played by an unknown actor.
The appearance of a full commander, outside of the regular cadre of permanent characters, is slightly unusual, as such a person would outrank such major characters as McCoy and Montgomery Scott. In any case, in the memorial appearance, this man could be seen wearing no rank insignia on his sleeves.

Security crewmen

Security guard #1

USS Enterprise security guard 1

A security guard

This security guard was stationed aboard the USS Enterprise when Harry Mudd came aboard in 2266.

He was ordered to take Mudd from Kirk's quarters to the assigned quarters for Mudd, but he instead escorted Mudd to the conference room, where he remained on guard alongside Vinci. When asked by Mudd to wait outside, he told Mudd that he would not, and remained within earshot of Mudd, and was often spoken at by Mudd to clarify anything suspicious he and Vinci may have overheard. The two guards remained at the post throughout Mudd's subsequent hearing.

He was later assigned to guard outside of Mudd's quarters, before being given the duty to inform Kirk of the arrival of Ben Childress and Herm Gossett to the captain's quarters. (TOS: "Mudd's Women")

He was played by Jerry Foxworth.

Security guard #2

This operations crewman initially served as an engineer when he informed the bridge from the engine room that temperatures were passing the danger line, while the Enterprise was extending its' deflector screens around the asteroid-disabled Stella in 2266. (TOS: "Mudd's Women")

He was later assigned as a security guard, and notified Captain Kirk through the intercom that the Weapons locker on H deck had been broken into, and a phaser was missing, when Lieutenant Kevin Riley tried to murder Anton Karidian. (TOS: "The Conscience of the King") The following year, he notified Kirk that Khan Noonien Singh has escaped from his quarters. (TOS: "Space Seed")

This character appeared as an off-screen voiceover.
This engineer, and later security guard, was unseen and heard only as a voice through the intercom. His was voiced was provided by associate producer Robert Justman.

Security guard #3

File:USS Enterprise security crewman 1.jpg

A security guard crewman

This crewman stood in a corridor, with a phaser pistol sidearm on his belt, conversing with Lieutenant Berkley. He later stood guard in a corridor when Captain Kirk ordered red alert, hunting for the M-113 creature. (TOS: "The Man Trap")

Played by Garrison True. His job and rank was established by his credit, but no proper name was listed. He received no credit for his appearance even though he had dialogue.

Security guard #4

File:USS Enterprise security crewman 2.jpg

A security guard

This crewman stood guard in a corridor when Kirk ordered red alert, to find the M-113 creature lurking on the Enterprise. (TOS: "The Man Trap")

Played by an unknown actor.

Security guard #5

USS Enterprise security guard 6

A security guard

This security guard was on the Enterprise when the crew was infected by the Psi 2000 virus in 2266. He helped Bobby to carry out the infected Lieutenant Kevin Riley from the engineering control room. (TOS: "The Naked Time")

Also the same year, he escorted Spock to Exo III, along with two other security guards. (TOS: "What Are Little Girls Made Of?")

He was also on board, when the insane Simon Van Gelder got aboard the vessel from Tantalus V, still the same year. Van Gelder knocked him unconscious while he was guarding the bridge. (TOS: "Dagger of the Mind")

In 2267, he was on the bridge during the ion storm and Captain Kirk's Trial when it was requested that all personnel leave the ship. He stood guard on the bridge, between the communications station and the turbolift door when the Enterprise left Starbase 11. (TOS: "Court Martial")

Played by an unknown actor.

Security guard #6

File:USS Enterprise operations guard 4.jpg

A security guard

This security guard was present in the recreation room when Lieutenant Joe Tormolen committed suicide under the influence of the Psi 2000 virus, in 2266. (TOS: "The Naked Time")

He also served as an engineer. In 2267, he helped Lieutenant Commander Scott in keeping the PXK pergium reactor working, on Janus VI. (TOS: "The Devil in the Dark")

He escorted Scott to Capella IV the same year. He was also present on the bridge a few hours earlier. (TOS: "Friday's Child")

He was present on the corridor near Spock's quarters, when the first officer threw out a dish of plomeek soup with rage, experiencing pon farr. (TOS: "Amok Time")

He was also present in the recreation room in 2268, when Uhura introduced tribbles to her crewmates. He was assigned to keep order among the crewmembers on shore leave and the Klingons when the Enterprise visited Deep Space Station K-7 and he had to break up the fight between the crewmembers on shore leave and the Klingons. He carried the pair of tribbles that Kirk used to determine that Arne Darvin was a Klingon. (TOS: "The Trouble with Tribbles")

The same year, he was a member of the honor guard that stood at attention as Vulcan Ambassador Sarek disembarked from the Galileo in the hangar deck. He was the only member of the honor guard who did not wear lieutenant stripes. (TOS: "Journey to Babel")

File:USS Enterprise operations guard 4, dead.jpg

Attacked by the dikironium cloud creature

Later the same year, he was member of an away team on Argus X, where he was killed by the dikironium cloud creature. (TOS: "Obsession")

However, he was present in sickbay, escorting the patients, when the Enterprise encountered a giant space-faring single cell organism, later the same year. (TOS: "The Immunity Syndrome")

The security guard was played by an unknown actor.
He was apparently killed in "Obsession", but the same extra in the same red uniform reappeared in "The Immunity Syndrome".

Security guard #7

File:USS Enterprise operations security guard 2.jpg

A security guard

This security guard was summoned to the gymnasium, along with Vinci, to escort Charlie Evans to his quarters, in 2266. He was later sent to escort Evans to the briefing room. (TOS: "Charlie X")

He was played by an unknown actor.

Security guard #8

File:USS Enterprise security guard 9.jpg

A security guard

This security crewman was on the USS Enterprise. (TOS: "Space Seed", "This Side of Paradise", "I, Mudd")

Played by Bobby Bass.

Security guard #9

File:USS Enterprise security guard 10.jpg

A security guard

This security guard was a member of Lieutenant Commander Giotto's team, sent to find the mother Horta on Janus VI, in 2267. He arrived at the scene of Kelly's murder with Giotto shortly after the search began. (TOS: "The Devil in the Dark")

Played by an unknown actor.

Security guard #10

File:USS Enterprise security guard 11.jpg

A security man

This security guard was on the 2267 landing party to the planet where the Guardian of Forever was located. He attempted to stop Doctor Leonard McCoy from escaping into the time portal. (TOS: "The City on the Edge of Forever")

The security guard was played by an unknown actor.
The novel The Fire and the Rose identifies this man as Paul Bates.
According to the Strange New Worlds II story "Triptych", the two security officers in the landing party were named Michael Jameson (β) and Worsley (β).

Security guard #11

This security officer was working on the bridge while the Enterprise was in orbit of Argelius II. He manned the communications station while Spock was in command of the ship. He received a tranquilizer from a nurse when the entity Redjac took over several crew members of the ship. (TOS: "Wolf in the Fold")

He and Leslie brought Cyrano Jones for questioning into Mr. Lurry's office on the Deep Space Station K-7 in 2268. When he and Leslie prepared to carry the tribbles out of the office they identified Arne Darvin as a Klingon and arrested him. (TOS: "The Trouble with Tribbles")

This security officer was played by background actor Steve Hershon who received no credit for his appearances.

Security guard #12

File:USS Enterprise security guard 13.jpg

A security guard

This security crewman participated in the fight between the Enterprise personnel and the IKS Gr'oth crew on Deep Space Station K-7, and was interrogated by Kirk afterwards, in 2268. (TOS: "The Trouble with Tribbles"; DS9: "Trials and Tribble-ations")

He was summoned to Ensign Garrovick's quarters, when it was attacked by the Dikironium cloud creature, the same year. (TOS: "Obsession")

He also served as an engineer, and sat at the engineering station on the bridge, when the Enterprise encountered Sargon, the same year. (TOS: "Return to Tomorrow")

He was summoned to the transporter room along with Freeman to take Gary Seven into custody, when the Enterprise traveled back in time to 1968 on a mission of historical observation. (TOS: "Assignment: Earth")

He was played by an unknown actor.

Security guard #13

File:USS Enterprise security guard 14.jpg

Cloud creature victim

This security guard was attacked by the dikironium cloud creature on Argus X and was listed in critical condition. (TOS: "Obsession")

Played by an unknown actor.

Security guard #14

File:USS Enterprise operations security guard 5.jpg

A security guard

This security crewman beamed down with Sulu and Leslie to Omega IV, and arrested Captain Ronald Tracey, in 2268. (TOS: "The Omega Glory")

Later the same year, he was summoned to the bridge along with Roger Lemli, to guard Bele and Lokai. (TOS: "Let That Be Your Last Battlefield")

He was played by an unknown actor.

Security guards #15 and #16

File:USS Enterprise operations security guards 3 & 4.jpg

Two unfortunate security guards

These two security guards were to beam down to Triacus in 2268. Unknown to them The Enterprise had left orbit. Vinci beamed both crewmen into where he thought Triacus was and they were both killed. (TOS: "And the Children Shall Lead")

They were both played by unknown performers.

Security guard #17

File:USS Enterprise operations security guard 8.jpg

A security guard

This security guard, under the influence of Gorgan and the Triacus children, accompanied Chekov and Freeman to put Captain Kirk under arrest in 2268. (TOS: "And the Children Shall Lead")

This guard was played by Dick Dial who previously played Kaplan in "The Apple".

Security guard #18

File:USS Enterprise operations security guard 9.jpg

A security guard

This security guard accompanied the landing party to Sigma Draconis VI in 2268. He remained on the surface with Ensign Chekov and another guard to keep contact with the ship. (TOS: "Spock's Brain")

This crewman was on the bridge bringing the captain a report shortly before the Enterprise was taken over by the Beta XII-A entity. He later assisted in escorting another security officer to Sickbay. (TOS: "Day of the Dove")

Later the same year, he helped Montgomery Scott getting into the access tube, to reverse the polarity on the magnetic probe. (TOS: "That Which Survives")

Still the same year, he was present on the bridge when the Enterprise found Lokai's stolen shuttle. Later, he was present in the recreation room, along with Sulu, Chekov, Hadley and Brent, listening to Bele as he explained his case to them, in 2268. (TOS: "Let That Be Your Last Battlefield")

That same year he was part of the landing party to Elba II to administer treatments with Dr. McCoy, Lieutenant Brent, an operations division yeoman, and Lemli. (TOS: "Whom Gods Destroy")

Played by an unknown actor.

Security guard #19

File:USS Enterprise operations security guard 10.jpg

A security guard

This security guard was on duty when the insane Larry Marvick tried to take over control of the Enterprise in 2268. (TOS: "Is There in Truth No Beauty?")

The same year, he fought against Kang's Klingon personnel when both crews were under the influence of the Beta XII-A entity during the initial conflict in the crew lounge before taking the injured Lieutenant Johnson to sickbay. He was later struck, while conferring with Scott, by the Klingons as they took main engineering. (TOS: "Day of the Dove")

Still the same year, he was guarding the auxiliary control center, which was taken over by hyper-accelerated Scalosians, who installed a force field surrounding the area. (TOS: "Wink of an Eye")

Played by Richard Geary.

Security guard #20

File:USS Enterprise operations crewman 8.jpg

An operations division crewman

This security crewman was summoned to the bridge when Ensign Pavel Chekov went berserk by the effects of the interspatial rift. Later, he was also present at Kirk's memorial service, in 2268. (TOS: "The Tholian Web")

Played by an unknown actor.

Security guard #21

File:USS Enterprise operations crewman 7.jpg

An operations division crewman

This security crewman was also summoned to the bridge when Chekov went berserk by the effects of the interspatial rift. Later, he was also present at Kirk's memorial service, in 2268 where he helped restrain a berserk crewman. (TOS: "The Tholian Web")

Played by an unknown actor.

Security guard #22

File:USS Enterprise operations security guard 22.jpg

A security guard

This security crewman participated in the fight between the Enterprise crew and Kang's Klingon personnel during the influence of the Beta XII-A entity in 2268. He was later struck by the Klingons as they took main engineering. (TOS: "Day of the Dove")

Played by David Sharpe.

Security guard #23

File:USS Enterprise operations security guard 12.jpg

A security guard

This security guard also participated in the fights against Kang's Klingon crew under the influence of the Beta XII-A entity, in 2268. He was injured, and had to be taken to sickbay by another security crewman. (TOS: "Day of the Dove")

Played by an unknown actor.

Security guard #24

File:USS Enterprise operations security guard 11.jpg

A security guard

This security guard was struck, while conferring with Scott, by the Klingons as they took main engineering. (TOS: "Day of the Dove")

The same year, he was guarding the auxiliary control center, which was taken over by hyper-accelerated Scalosians, who installed a force field surrounding the area. (TOS: "Wink of an Eye")

This security guard was played by stunt actor Eddie Hice.

Security guard #25

USS Enterprise security guard 30

A security guard

This security crewman was guarding Doctor Sevrin in the brig in 2269. He listened to the music made by Adam and Sevrin's followers, when he was rendered unconscious by Tongo Rad. (TOS: "The Way to Eden")

Played by an unknown actor.

Security guard #26

USS Enterprise security guard 31

A security guard

This security crewman was guarding the sickbay when Doctor Sevrin was examined there in 2269. (TOS: "The Way to Eden")

Played by an unknown actor.

Security guard #27

USS Enterprise security guard 32

A security guard

This security guard accompanied Lieutenant Dickerson to the transporter room, to stand honor guard when the Excalbian recreation of Abraham Lincoln arrived on board, in 2269. (TOS: "The Savage Curtain")

Played by an unknown actor.

Security guard #28

File:USS Enterprise security guard 33.jpg

Security guard

This security guard accompanied Lieutenant Dickerson to the transporter room, to stand honor guard when the Excalbian recreation of Abraham Lincoln arrived on board, in 2269. (TOS: "The Savage Curtain")

Later the same year, he was called upon (with another security guard) to arrest Spock by Janice Lester, possessing Captain Kirk's body. ("Turnabout Intruder")

Played by an unknown actor. He may or may not be played by John Boyer.

Security guard #29

File:USS Enterprise operations security crewman 5.jpg

Security guard

This security crewman, along with another guard, arrested Cyrano Jones when he transported aboard the Enterprise in 2269. (TAS: "More Tribbles, More Troubles")

Security guards #30 and #31

These security crewmen were members of the rescue team that accompanied Lieutenant Commander Montgomery Scott to the surface of Delta Theta III in 2270. (TAS: "Bem")

Security officers

Security chief

This security chief responded to Captain James T. Kirk's call do to Security. After responding, Kirk told him to put "all decks on alert" and to post "a man outside the transporter room immediately," because Captain John Christopher had left his quarters and "may be trying to escape the ship." (TOS: "Tomorrow is Yesterday")

This character appeared as an off-screen voiceover.
This chief was voiced by an unknown actor.

Security ensign #1

File:USS Enterprise security guard 34.jpg

A security guard

This security crewman guarded the quarters of Janice Lester, when Captain Kirk's consciousness occupied her body. He reported to Spock of the "Escape attempt by Doctor Lester." As Spock approached, he assured that "it's quite all right, Ensign. Everything is under control," before he disabled him with a nerve pinch to get out of the cabin. (TOS: "Turnabout Intruder")

Played by an unknown actor. He may or may not be played by John Boyer.

Security lieutenant #1

File:USS Enterprise operations security lieutenant 1.jpg

A security lieutenant

This lieutenant was on the bridge when the Enterprise encountered a violent ion storm in 2267. (TOS: "Court Martial")

He was later a member of the honor guard, greeting Ambassador Sarek on the Enterprise in 2268. (TOS: "Journey to Babel")

Played by an unknown actor.

Security lieutenant #2

File:USS Enterprise operations security lieutenant 2.jpg

A security lieutenant

This lieutenant served as a security officer in 2267.

That year, he stood watch in the ship's hearing room, along with security chief Pitcairn, during Spock's preliminary hearing. After the hearing had concluded, and Spock refused to return control of the Enterprise to Kirk, the captain ordered the two guards to lock Spock up, and they escorted him from the hearing room. (TOS: "The Menagerie, Part I") Later, during Spock's proceeding court martial, he pushed Fleet Captain Christopher Pike's wheelchair from the hearing room when it became apparent that the injured Pike required rest. (TOS: "The Menagerie, Part II")

Also that year, he joined the landing party on an uncharted planet. Later, in sickbay, he guarded anti-Lazarus, where Dr. McCoy resented the presence of the "muscleman". (TOS: "The Alternative Factor")

Played by Tom Lupo.

Security lieutenant #3

File:USS Enterprise operations security lieutenant 3.jpg

Nomad victim #3

This lieutenant escored Chief engineer Scott to Capella IV in 2267. (TOS: "Friday's Child")

The same year, along with Carlisle, he was given the duty of replacing the two deceased guards escorting Nomad. Both this lieutenant and Carlisle were subsequently killed by the probe. (TOS: "The Changeling")

In 2268, he joined Lieutenant Rowe to the auxiliary control center, when the android Norman took over control of the Enterprise. He and a second guard were instructed by Rowe to take care of the injured Ensign Jordan. (TOS: "I, Mudd")

The same year, he passed Captain Kirk and Commander Spock on the corridor, during the Enterprise's visit to Deep Space Station K-7. (TOS: "The Trouble with Tribbles")

Still the same year, as a member of a security detail under Ensign Rizzo, he was killed by the Dikironium cloud creature on the surface of Argus X. (TOS: "Obsession")

Yet he was again present on a corridor later the same year, when the Enterprise encountered Bele's spaceship. (TOS: "Let That Be Your Last Battlefield")

Played by an unknown actor.
The same extra died twice during the course of the series (both playing a security guard). It can be assumed that the two were different characters.
His appearance in "Let That Be Your Last Battlefield" is via recycled footage from "The Trouble with Tribbles".

Security lieutenant #4

File:USS Enterprise operations security lieutenant 9.jpg

Security officer #4

This lieutenant was given the duty of escorting Nomad to the brig and guarding it, in 2267. He was seemingly vaporized by the probe after it escaped and began roaming freely through the corridors of the ship. (TOS: "The Changeling")

The security officer was played by Joe Paz, who would later portray, among other characters, a sciences lieutenant in "The Trouble with Tribbles".

Security lieutenant #5

File:USS Enterprise operations security lieutenant 11.jpg

Operations lieutenant

During a red alert in 2268, this lieutenant in the security division was traveling through the Enterprise corridors when the vessel encountered the IKS Gr'oth at Deep Space Station K-7. (DS9: "Trials and Tribble-ations")

"The Trouble with Tribbles" writer David Gerrold played this unnamed, uncredited extra. He had reportedly written a cameo for himself (as Mr. Freeman) in that original, but was unable to be included in the filming. With new footage being filmed taking place in that episode almost thirty years later, Gerrold got to rectify that mistake playing a redshirt. He did have other Star Trek appearances in the interim (see Command division crewmember below).
Since he carried a phaser on a standard issue black security belt, he was a security officer.

Security lieutenant #6

File:USS Enterprise operations security lieutenant 7.jpg

Security guard on K-7 in 2268

In 2268, this bulky male security officer was one of several called in to break up a fight which had broken out between Enterprise officers and Klingon officers from the IKS Gr'oth. He ended up arresting Miles O'Brien. (DS9: "Trials and Tribble-ations")

This officer was played by an unknown actor. According to the script, he was described as "a very serious, very large Enterprise Security Officer."

Security lieutenant #7

File:USS Enterprise operations security lieutenant 8.jpg

Security guard on K-7 in 2268

In 2268, this male security officer, smaller than his counterpart above, was one of several called in to break up a fight which had broken out between Enterprise officers and Klingon officers from the IKS Gr'oth. He ended up arresting Julian Bashir. (DS9: "Trials and Tribble-ations")

Played by an unknown actor.

Security lieutenant #8

File:USS Enterprise operations security lieutenant 4.jpg

A security lieutenant

This lieutenant was among the security personnel assigned to Ambassador Sarek's honor guard in 2268. (TOS: "Journey to Babel")

Played by an unknown actor.

Security lieutenant #9

File:USS Enterprise operations security lieutenant 5.jpg

A security lieutenant

This lieutenant was a member of the honor guard, greeting Ambassador Sarek on the Enterprise in 2268. He later guarded the corridor where the Tellarite Ambassador was murdered. (TOS: "Journey to Babel")

Played by an unknown actor.

Security lieutenant #10

File:USS Enterprise operations security guard 21.jpg

A security guard

This lieutenant stood watch outside main engineering along with Hikaru Sulu. A short time later, he and Sulu assisted Scott as he escaped main engineering, after it was taken by the Klingons. He, Scott and Sulu then split up and tried to make it back up to the bridge. He later joined Spock, McCoy and several other guards in returning to main engineering, where he and the other security personnel had a final battle before being ordered to lay down their weapons by Kirk and Kang. (TOS: "Day of the Dove")

Played by Charles Picerni.

Security lieutenants #11 – 14

USS Enterprise security crew women

Four lieutenants

Black-haired lieutenant

A female security lieutenant beamed down to planet two of the Taurean system to rescue an Enterprise landing party. (TAS: "The Lorelei Signal")

Blond-haired lieutenant

Another female security lieutenant who beamed down to planet two of the Taurean system to rescue an Enterprise landing party. (TAS: "The Lorelei Signal")

Brown-haired lieutenant

Another female security lieutenant who beamed down to planet two of the Taurean system to rescue an Enterprise landing party. (TAS: "The Lorelei Signal")

Freckled lieutenant

One more female security lieutenant who beamed down to planet two of the Taurean system to rescue an Enterprise landing party. (TAS: "The Lorelei Signal")

One of these women may be Davison, noted earlier in the episode as being ranking female security officer on Enterprise.

Security lieutenant #15

File:USS Enterprise operations security lieutenant 12.jpg

Security guard

This lieutenant, along with another guard, arrested Cyrano Jones when he transported aboard the Enterprise in 2269. (TAS: "More Tribbles, More Troubles")

Security lieutenant #16 and #17

These lieutenants guarded the Orion captain, when he was beamed over to the Enterprise in 2270. (TAS: "The Pirates of Orion")

The first security guard was voiced by James Doohan.

Security lieutenant #18

USS Enterprise operations security lieutenant 15

Security guard

This lieutenant was a member of the rescue team which accompanied Lieutenant Commander Montgomery Scott to the surface of Delta Theta III, in 2270. (TAS: "Bem")

Transporter operators

Transporter assistant #1

File:USS Enterprise operations transporter assistant 1.jpg

Transporter assistant

This technician was operating the transporter, assisting Montgomery Scott in 2266. (TOS: "The Naked Time")

Played by an unknown actor.

Transporter assistant #2

File:USS Enterprise operations transporter assistant 3.jpg

Transporter assistant

This technician was operating the transporter, assisting Montgomery Scott in 2267. (TOS: "The Menagerie, Part I")

Played by an unknown actor.

Transporter assistant #3

File:USS Enterprise operations transporter assistant 4.jpg

Transporter assistant

This technician was operating the transporter, assisting Montgomery Scott in 2267 when the Enterprise visited Beta III. (TOS: "The Return of the Archons")

Played by an unknown actor.

Transporter assistant #4

File:USS Enterprise operations engineering technician 6.jpg

An engineering technician

This engineering crewman was present in the transporter room when Nomad was beamed aboard the Enterprise in 2267. (TOS: "The Changeling")

Played by an unknown actor.

Transporter chief #1

File:USS Enterprise operations transporter chief 2.jpg

Transporter chief

This transporter chief operated the transporter when Kirk and Nurse Chapel beamed down to Exo III in 2266. (TOS: "What Are Little Girls Made Of?")

Played by an unknown actor.

Transporter chief #2

USS Enterprise transporter chief 2

Transporter technician

This transporter technician was knocked unconscious by anti-Lazarus in 2267. (TOS: "The Alternative Factor")

Played by Christian Patrick.

Transporter ensign

USS Enterprise transporter ensign

Transporter ensign

This ensign was assigned to the transporter room aboard the USS Enterprise. (TAS: "More Tribbles, More Troubles")

This individual was a caricature of the episode's writer, David Gerrold, that was added as an in-joke, whereas he was described in the 23 April 1973 revision of the script as "a transporter ensign who looks like the author."
Gerrold told a story recalling this in the audio commentary from TAS: "Bem", stating "
There was a line in the script that the transporter crewman looked suspiciously like the author of the episode. Which was me writing myself into the animated series. And sure enough, when they drew that scene, when they animated it, the animators had some fun and drew a little caricature of me at the transporter control. So I was the transporter crewman in the animated episode just as a... there's no dialogue, it's just a sight gag. And a few people recognized me but not very many. I mean, it was just an in-joke."
According to the novelization of the episode by Alan Dean Foster this individual was named "Hacker." Gerrold also noted this in his audio commentary, stating that he felt that it "was kind of an insult to call another writer a "hack." It means you're not very good."

Transporter lieutenant #1

File:USS Enterprise operations transporter technician 3.jpg

Transporter technician

This lieutenant operated the transporter in 2269 after the entire male crew was made unconscious by the inhabitants of planet two of the Taurean system. (TAS: "The Lorelei Signal")

Transporter lieutenants #2 – #4

USS Enterprise operations engineers

Three engineers

These three lieutenants were shrunk to a miniature size while the Enterprise was investigating the lost colony Terra 10 in 2269. They operated the transporter controls by pulling strings. (TAS: "The Terratin Incident")

According to the novelization, these three officers were named Johnson, Massachi, and Nikkatsu.

Mid 2270s

Assistant engineer

File:USS Enterprise operations assistant engineer 2.jpg

An assistant engineer

This assistant engineer was working in main engineering during the V'Ger crisis in the 2270s. (Star Trek: The Motion Picture)

He was played by an unknown actor. The character's position was verified from the film's script.

Bridge crewman

File:USS Enterprise operations bridge crewmember.jpg

A bridge crewmember

This technician was also serving on the bridge during the V'Ger incident. (Star Trek: The Motion Picture)

He was played by Ralph Brannen.
He was identified as a technician on the film's call sheet.

Engineer #21

File:USS Enterprise operations engineer 15.jpg

An engineer

This engineer was working in main engineering when Rear Admiral Kirk took over command from Captain Will Decker, in the mid-2270s. (Star Trek: The Motion Picture)

He was played by an unknown actor.

Engineer #22

File:USS Enterprise operations engineer 17.jpg

An engineer

This engineer was working on the USS Enterprise in the mid-2270s. (Star Trek: The Motion Picture)

She was played by an unknown actress.

Engineer #23

USS Enterprise operations engineer 18

An engineer

This engineer attended the briefing on the recreation deck of the USS Enterprise in the 2270s. He was witness to the destruction of the Epsilon IX station during the briefing. (Star Trek: The Motion Picture)

He was played by an unknown actor.

Engineering chief

This engineering chief was present in a corridor soon after Rear Admiral Kirk arrived on board. He was pushing a hoover stretcher. (Star Trek: The Motion Picture)

He was among the crewmembers welcoming Kirk back aboard the Enterprise in 2285 and was standing next to Scotty. Later, he was among the engineering crew who tried to maintain the ship functional in engineering when the Reliant attacked. He was also present at the funeral service held for Spock in the torpedo bay. (Star Trek II: The Wrath of Khan)

This recurring chief was played by background actor and stand-in Joel Marston.
The character was named an Engineering chief in the script of The Motion Picture and "Crew Chief" in the end credits of Star Trek II where he was misspelled as Joel Marstan.

Native American officer

USS Enterprise operations Native American officer

A Native American officer

This Native American officer was among the crew that attended the briefing on V'Ger at the recreation deck. (Star Trek: The Motion Picture)

She was played by an unknown actress.
The novel Ex Machina gives her the name Mosi Nizhoni, assistant chief of security.

Rec deck crewmembers

These crewmembers attended the briefing on the recreation deck of the USS Enterprise in the 2270s. They were witnesses to the destruction of the Epsilon IX station during the briefing. (Star Trek: The Motion Picture)

All 170 crewmembers were played by extras, production staff members, and fans and most of them received no on-screen credit for their appearances. They were cast by a cattle call, organized by Bjo Trimble and had to fullfill these special requests: "aged between 20 and 40, men from 5'8" to 6'2", sizes 40-42, and women from 5'6" to 5'8', sizes 8-10".

Rhaandarite ensign

Rhaandarite ensign

A Rhaandarite ensign

This male Rhaandarite ensign was on the bridge of the Enterprise as it was completing its refit and was present when Admiral Kirk took command. (Star Trek: The Motion Picture)

This unnamed character, played by Billy Van Zandt, was identified as "Alien Ensign" in the script, and "Alien Boy" in the end credits.
According to Van Zandt, he was working at the Internal Security station. (citation needededit) His single line of dialogue with Uhura, about Decker's demotion, was not used in the theatrical print of the film, but was restored for the premiere television broadcast (i.e. the "Special Longer Version" on the home video releases), and for the "Director's Edition" on DVD.
In issues of the Marvel/Paramount comic series Star Trek: Untold Voyages he was identified as Ensign Omal. In the Pocket novel Ex Machina, he was identified as Ensign Vaylin Zaand.

Saurian engineer

Saurian engineer

A Saurian engineer

This Saurian engineer was among the crew that attended the briefing on V'Ger at the recreation deck. (Star Trek: The Motion Picture)

The Saurian was played by Cedric Taporco.
The novel Ex Machina gives her the name R'trikahi.

Transporter assistant

File:USS Enterprise operations transporter assistant 7.jpg

A transporter assistant

This crewman assisted transporter chief Janice Rand on board the Enterprise in the 2270s. He was present when the transporter accident happened and Commander Sonak and another woman died in the transporter beam. Later he assisted Rand again when she beamed Doctor Leonard McCoy on board the Enterprise. (Star Trek: The Motion Picture)

This crewman was played by John D. Gowans.

Yeoman #5

USS Enterprise operations yeoman 6

A yeoman

This yeoman was on the USS Enterprise in the 2270s. (Star Trek: The Motion Picture)

This yeoman was played by Lisa Chess.
Her appearance was cut from the original theatrical version and re-inserted in the Director's Cut.

Yeoman #6

File:USS Enterprise operations yeoman 7.jpg

A yeoman

This yeoman was on the USS Enterprise in the 2270s. (Star Trek: The Motion Picture)

This yeoman was played by Leslie C. Howard.

2280s

Security guards #30 and 31

These security guards were summoned to Spock's quarters, after Doctor Leonard McCoy broke into it, in 2285. (Star Trek III: The Search for Spock)

They were played by unknown actors.

Torpedo lieutenant

USS Enterprise operations torpedo lieutenant

A torpedo lieutenant

This lieutenant was in the torpedo bay during the incident with the USS Reliant in 2285. (Star Trek II: The Wrath of Khan)

He was played by Richard Forinash.

Trainee bridge crewwoman

USS Enterprise operations trainee bridge crew woman

Female bridge trainee

This female cadet served on the bridge performing various duties during the ship's training mission in 2285. (Star Trek II: The Wrath of Khan)

She was also seen gathered with the rest of the crew, now wearing the black crewman division color, during Fleet Admiral Morrow's inspection of the vessel after their return to the Earth Spacedock, the same year. (Star Trek III: The Search for Spock)

She was again seen on the bridge of the newly commissioned USS Enterprise-A during its shakedown cruise in 2286. (Star Trek IV: The Voyage Home)

This recurring Starfleet crewman was played by background actress and stand-in Kimberly L. Ryusaki, who received no credit for her appearances.
During the preproduction of The Search for Spock, Ryusaki happily noted her appearance in the new film, explaining "We're no longer cadets. Now, we're full-fledged officers on the Bridge!" (Starlog #80, March 1984, p. 44)
She was also the only non-main cast member to appear on the bridge of the Enterprise-A in The Voyage Home.

Engineering crewman 1

This engineering crewman was assigned to the machine room of the Enterprise during the training cruise and Khan Noonien Singh's attack. He was present when Admiral Kirk visited the ship shortly before its launch. He was later present in engineering and grabbed Kirk at the waist as McCoy and Scott grabbed his arms to prevent him from getting to Spock. He was present at the memorial service for Spock. (Star Trek II: The Wrath of Khan)

He was later present when Admiral Morrow visited the Enterprise after its return to the Earth Spacedock in 2285. He was given orders by the admiral "not to discuss with anyone your knowledge of Genesis, [and to] [c]onsider it a quarantined planet. And a forbidden subject." (Star Trek III: The Search for Spock)

This engineer was played by background actor John Staible, who received no credit for his appearance.

Engineering crewman 2

USS Enterprise operations engineering crewman 2

Engineer

This engineering crewman was assigned to the machine room of the Enterprise during the training cruise and Khan Noonien Singh's attack. They were present when Admiral James T. Kirk visited the ship shortly before its launch. Both crewmen were later present at the memorial service for Spock. (Star Trek II: The Wrath of Khan)

This engineer was played by an unknown actor.

Starfleet Academy cadets

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