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These are unidentified humanoid species observed in the 24th century.

Alpha and Beta Quadrants

Abducting aliens

Two abducting aliens

A third alien

"In any event, we now know of your race and we know how to imprison you. Bear that in mind. Now, get off my ship!"
– Jean-Luc Picard, to his alien abductors, 2366 ("Allegiance")

These aliens were an intelligent species and civilization with advanced technology. Their physical appearance was characterized by a large bald cranium, a large chin and large nostrils and light brown skin. They were dressed in blue leather-like jumpsuits. They had the ability to form links between themselves telepathically, so that they were in continual contact with each other.

Their culture was heavily influenced by the fact that each individual was identical, so that distinctions between themselves were meaningless. Consequently, they did not have leaders or followers. They also did not have a concept of morality.

Their technology included transporters which could also replicate living matter, including the complex patterns of the brain.

In 2366, a group of them decided to study the nature of command. To this end, three beings were responsible for kidnapping members of other species which reacted differently to authority. They kidnapped a Human, Captain Jean-Luc Picard, a Mizarian, Kova Tholl, and a Chalnoth, Esoqq. Another being also entered the cell to observe them, taking on the identity of a Bolian Starfleet cadet, Mitena Haro. The cell was designed with tests in mind to give them goals to achieve, and setbacks to deter them when they didn't work together. Meanwhile, the group created replicas of the three individuals to resume their lives and test aspects of command there. For example, Picard's replica gave increasingly strange orders to gauge reaction.

After Picard discovered what happened, they returned him to the USS Enterprise-D since the experiment was then ruined. He trapped the two aliens with him in a force field. They pleaded to be let go. After Picard showed them what it's like to held against one's will, that kidnapping is wrong, he dropped the force field and ordered them off his ship. (TNG: "Allegiance")

The script simply described these individuals and race as "identical alien creatures (a species we've never seen before)." The script also indicates that there were a total to four aliens seen in the episode, with #3 being Haro and #4 being the Picard replicate.
All four aliens were played by twin actors Jerry and Jeff Rector. Stated Michael Westmore, "Both actors looked exactly alike in body shape, head size and facial features, so we were able to use a duplicate set of [makeup] appliances on them." (Star Trek: The Next Generation Makeup FX Journal, p. 66)
Westmore further explained that the staff described these aliens as "cauliflower heads", and described their makeup as "large, yellowish heads with big nostrils." (Star Trek: Aliens & Artifacts, p. 118)

Albino's guards



Several aliens visited the same beach, Deanna Troi and Reginald Barclay visited in 2377.

A couple of aliens with pointed ears and green spotted sides and foreheads came out of the water.

A man with a large nose was buried into the sand by two females. (VOY: "Inside Man")

The male part of the couple was played by background actor David Polk. His trousers were sold off on the It's A Wrap! sale and auction on eBay. [1] The others were played by unknown performers.

Cabana boy

An alien waiter

A bald alien with mottled green skin and a vertical line of small ridges, running across his forehead and chest was working as a waiter at a beach that Deanna Troi and Reginald Barclay both visited in the year 2377. He handed Barclay a tray of two chocolate passion punches that he had ordered. (VOY: "Inside Man")

The waiter was called "Cabana boy" in the script and played by actor Chase Penny.

Bonestell Recreation Facility visitors

Deep Space 9

Deep Space 9 residents

Deep Space 9 visitors

Odo's wanted poster criminals

Several individuals appeared as criminals on wanted posters displayed in Odo's security office on Deep Space 9 from 2369 to around 2372, including Gul Dolak, Praetor Neral, Orta, Plix Tixiplik, Villus Thed, as well as a Ferengi, Klingon and Ktarian criminals.

Buck-toothed alien criminal

A criminal displayed on a wanted poster

This individual was a criminal whose face was displayed on a wanted poster in Odo's security office aboard Deep Space 9 in 2369 through 2372. (DS9: "Vortex", "If Wishes Were Horses", "The Forsaken", "Dramatis Personae", "Duet", "In the Hands of the Prophets", "Crossfire", "Call to Arms", "A Time to Stand", "Rocks and Shoals", "Sacrifice of Angels")

This criminal was portrayed by an unknown performer. Their image an augmented make-up continuity photo originally taken by the make-up department.
For more information on this species, look here.

Dessica II visitors

Earth visitors

Antwerp Conference attendee

New Zealand alien prisoner

Pink-skinned bald alien

Alien visitor

By 2372, members of this species had also traveled to Earth; one female member of this species walked along the streets of San Francisco and came very close to Harry Kim's former apartment. (VOY: "Non Sequitur")

This alien was played by Tracee Lee Cocco. She filmed her scenes for "Non Sequitur" on Tuesday 25 July 1995 on location at the New York Street lot and is listed as "Alien Pedestrian" on the call sheet.
For more information on this species, look here.

Quantum Café bartender

Harod IV miners

These five alien miners, plus Plix Tixiplik and another Reegrunion miner, were working on Harod IV and were stranded on the planet in late 2368. They were picked up by the USS Enterprise-D and transported to their next destination aboard the ship at the same time as Kamala was transported aboard the ship. When the empathic metamorph entered Ten Forward, she caused quite a stir among the miners because of her beauty. They quickly surrounded her and said suggestive things, to which Data called them rude. For a short time, Kamala adopted the rough personality that appealed to the visiting miners. She egged them on by asking what drink they like. When they replied Aldorian ale, she said that it was her favorite too. Data, who was assigned to be her chaperone, sensed trouble and escorted her out, with the assistance of Worf who intimated the miners.

Two of these aliens were characterized by yellow skin and facial ridges that looked rather similar to Cardassian ridges, and others by brown skin, a number of facial ridges and protrusions and large cheekbones. (TNG: "The Perfect Mate")

The miners played by Needles and Gunning were credited as "Miner #1" and "Miner #3" in the episode's end credits. The other miners were played by background performers with the last names Gregory, Wilson, or Lynch.
They filmed their scenes on Friday 21 February 1992 on Paramount Stage 8 and were all listed as "Alien Miners" on the call sheet.

Qualor II visitors

Ronara visitors

Telepathic species trapped in a Tyken's Rift

Telepathic being appearing in Troi's dream

A member or members of this telepathic species crewed a ship that became trapped in a Tyken's Rift near an uncharted binary star system, in 2367.

Their abilities made them capable of broadcasting telepathic messages at a frequency matching that of a Betazoid's REM sleep. This allowed a Betazoid to receive such a message while dreaming, although the communication proved difficult for Betazoids to interpret and was limited by the dreamer's capacity for directed dreaming. In addition, REM sleep in other frequencies was inhibited; this prevented non-Betazoid humanoids in the vicinity from dreaming, which led to debilitating cognitive impairments including irritability, paranoia, hallucinations, and ultimately insanity. The experience could also drive a Betazoid into a profound, but recoverable catatonic state.

The aliens had a knowledge of the Tyken's Rifts phenomenon and of chemistry that was comparable to that of the Federation; they were aware that a large explosion could free a trapped vessel, and they devised a means of generating an explosive chemical reaction for that purpose.

Their contact with the Federation occurred in 2367, when their vessel became trapped in a Tyken's Rift at the same time as the USS Brattain. They attempted to telepathically instruct the Brattain's crew to release hydrogen into the rift, which the aliens wished to use to generate an explosive chemical reaction with a substance they would release. The Brattain could not detect the alien vessel on the other side of the rift, but Andrus Hagan, the Betazoid science adviser on the Brattain, received the aliens' telepathic broadcast while asleep. Unfortunately, Hagan experienced the alien's representation of the hydrogen atom, "one moon circles," as a nightmare and failed to understand it. He became catatonic, while the rest of the crew went insane and killed each other, leaving the Brattain adrift.

Twenty-nine days after the Brittain sent a distress call, the USS Enterprise-D arrived to investigate and became similarly trapped. The ship's counselor, Deanna Troi, was half-Human, half-Betazoid, and also experienced the telepathic broadcast as a nightmare. Troi, a psychologist, and her colleague Beverly Crusher, a medical doctor, detected and monitored the behavioral changes aboard the Enterprise, which led Troi to hypothesize the existence of the aliens after the crew realized that the sleep effects had a cause distinct from the Tyken's Rift. Having used directed dreaming as a therapeutic treatment, Troi offered to attempt to respond to the aliens' message in hopes of coordinating an escape from the rift. Troi and the Enterprise's second officer, Data, then correctly interpreted the message as a request for hydrogen to create an explosion that would free both ships. As the Enterprise began to release hydrogen from its Bussard collectors, Crusher induced REM sleep in Troi, who confirmed receipt of the aliens' message and instructed them to proceed. The individual with whom she was in telepathic contact, previously unseen, then appeared as a bright humanoid silhouette before Troi woke up. An explosion then disrupted the rift, freeing both ships. The alien ship departed in the opposite direction from the Enterprise. (TNG: "Night Terrors")

The voice of the being was provided by an unknown actor, and was referred to as 'Sighing Voice' in the script. [2]

USS Enterprise-D

Utopia Planitia Fleet Yards personnel

Delta Quadrant

Akritirian maximum security detention facility

Antarian Trans-stellar Rally guests

These humanoids partook in the Antarian Trans-stellar Rally pre-race ceremony in the mess hall aboard USS Voyager in 2377. (VOY: "Drive")

All six aliens were identified as one species on the call sheet, listed as "Species #4" though the mechanic looks a bit different than the other ones. Along with these individuals were the names of two unidentifed species, noted to be participating in the rally, the Aksani and Chessu.
The actors filmed their scenes on Tuesday 18 July 2000 on Paramount Stage 8.
The costumes worn by the four pilots were previously seen as the jumpsuits worn by the Tyran technicians in the Star Trek: The Next Generation sixth season episode "The Quality of Life". The jumpsuits worn by Mike McNett and Matt Brown were later sold off on the It's A Wrap! sale and auction on eBay. [3] [4] The costume worn by Faith Burton was previously worn by Fionnula Flanagan in the Star Trek: The Next Generation seventh season episode "Inheritance" and was later also sold off on the It's A Wrap! sale and auction on eBay. [5]

Avery III prisoner

Borg Collective

Unimatrix Zero inhabitants


Hallucination of pre-assimilated self

This individual with bumpy reptilian skin was encountered and assimilated by the Borg prior to 2373. An image this person appeared during one of Seven of Nine's guilt-induced hallucinations after her encounter with a Borg vinculum. (VOY: "Infinite Regress")

This reptilian was played by an unknown performer.


Hallucination of pre-assimilated self

This individual with tailhead was encountered and assimilated by the Borg prior to 2373. An image this person appeared during one of Seven of Nine's guilt-induced hallucinations after her encounter with a Borg vinculum. (VOY: "Infinite Regress")

This Tailhead was played by an unknown performer.
For more information on this species, look here.

Markonian outpost

Mikhal bar visitors

These alien bar visitors were present at a lodge at the Mikhal outpost when Captain Kathryn Janeway and a Mikhal traveler, called Nakahn, were engaged in conversation. He was telling the captain an incredible story of one of his travels. Among them were two females and two male aliens. (VOY: "Darkling")

All four aliens were played by background performers who received no on-screen credit for their appearance.

Mokra-controlled planet aliens

These alien species were living on a Mokra-controlled planet in 2372. They visited the marketplace when an away team of the USS Voyager was attacked and imprisoned by soldiers of the Mokra Order. (VOY: "Resistance")

Tracee Cocco

They're listed as "Aliens" on the call sheets and filmed their scenes on 29 September 1995 and 2 October 1995 on Paramount Stage 16.
The makeup on Tracee Lee Cocco was applied by Thomas E. Surprenant.

Nekrit Expanse

Ord'mirit mining vessel commandant

This individual was the commandant of an Ord'mirit mining vessel encountered by the Silver Blood USS Voyager in orbit of a class Y planet in 2375. He contacted the Voyager and asked them to leave the planet and its orbit immediately. (VOY: "Course: Oblivion")

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


Pink-skinned aliens

Pink-skinned aliens on Quarra

Three workers of this unidentified species were employed on the planet Quarra.

One was stopped and questioned by Kathryn Janeway who was lost and looking for her work position at the Central Power Facility, he pointed her towards the supervisor's office, and told her "over there". (VOY: "Workforce")

All three later sat together in the local tavern. (VOY: "Workforce, Part II")

These aliens, which bore features similar to both the Benzites and Imhotep were played by unknown actors. In the call sheets, they were identified as "Full Heads", and in the script, the one encountered by Janeway was called simply, "Alien N.D." and was uncredited, despite having spoken dialog.

Ridged forehead alien

These aliens had a Human appearance but featured a prominent ridge from the nose up to the forehead. Three members of this species were held as slave workers at the Central Power Facility on Quarra in 2377. (VOY: "Workforce", "Workforce, Part II")

The call sheets listed these aliens as "Alien Nose #2" and "Nose Type 2".

Ridged nose alien

This alien had a Human appearance but featured a prominent ridge on the upper nose part of the face. Two members of this species were held as slave workers at Central Power Facility on Quarra in 2377. (VOY: "Workforce", "Workforce, Part II")

The call sheet listed these aliens as "Alien Nose #1" and "Nose Type 1".
The actors filmed their scenes on 1 December 2000, between 4 December 2000 and 8 December 2000, on 13 December 2000, 15 December 2000, and on 20 December 2000 on Paramount Stage 16 and on location at the New York Street backlot.


Sobras bar patron

An alien bar patron

This alien was located in a Kazon-Pommar bar on Sobras. It was seated at the bar when Neelix asked the bartender about his "friend" Tersa. (VOY: "Alliances")

This alien, who was possibly a Rotciv, was played by recurring background actress Tracee Lee Cocco who filmed her scenes on Monday 30 October 1995 on Paramount Stage 16.

Sobras dancer

A dancer on Sobras

A female member of this species was a dancer at a bar on Sobras, a planet controlled by the Kazon-Pommar.

In 2372, Tersa informed Neelix that this dancer had shown him a puzzle he was completely engrossed in. He added that the first man to solve it, and move only two rods to change it from a dodecahedron to an icosahedron, would have the privilege of spending the night with her. Neelix took a seat at Tersa's table and offered to help with the puzzle if the Kazon Jal agreed to listen to him first. (VOY: "Alliances")

This woman, who looks vaguely Talaxian, was played by Symba Smith.

Tau's city traders

Alien buyer

An alien buyer

This alien buyer was attempting to broker a deal with Tau, a leader of pirates who stole technology from various starships. Tau told him he could provide him with all the weapons he needed, even a ceremonial spear. When the buyer said Tau's price was too high, Tau threatened to sell the weapons to the buyer's enemies instead. (VOY: "Concerning Flight")

This alien buyer was portrayed by actor Doug Spearman who filmed his scene on Thursday 18 September 1997 on Paramount Stage 16.
This Buyer was described in the script as "humorless and all business – in contrast to Tau, who has a sense of irony about him."
In the revised first draft, it was stated that he was originally from a colony in the Tehar system.

Alien visitor

An alien visitor

This alien visitor was invited aboard the USS Voyager to discuss a deal for a warp coil. This was just a ruse, in order to question him concerning stolen Voyager technology. He was in possession of a tricorder, a compression phaser rifle, and was wearing a command division Starfleet uniform. He admitted that he had purchased the items from a man named Tau, a leader of pirates who stole technology from various ships. He did not know where Tau was, as he always dealt with a go between. In return for his information, he was permitted by Commander Chakotay to keep the items he'd acquired, a deal which did not particularly impress him. (VOY: "Concerning Flight")

This alien was portrayed by actor Don Pugsley who filmed his scene on Wednesday 10 September 1997 on Paramount Stage 8.
This Alien Visitor was described in the script as "a different race from da Vinci's weapon's dealer "patron"."

Commerce planet visitors

Several members of unknown species visited a planet in the Delta Quadrant in 2374 to conduct business. The away team from the USS Voyager questioned some of them about their stolen technology. Additional visitors include a male Rotciv.

One of the alien visitors was of a species also frequently seen in the Alpha Quadrant. (VOY: "Concerning Flight")

The third, fourth, and fifth pictured aliens are from the same species and were played by background performers Chris Evans, M. Janati, and G. Victor. The final nine traders are listed as "Humans" on the call sheets. The last two women were played by S. Dean and J. Durant. They filmed their scenes on Wednesday 17 September 1997 and Thursday 18 September 1997 on Paramount Stage 16.
The dress worn by Fedra Thompson, who was a member of either Emi's species or Tria's species, was previously worn by Sandra Nelson in the episode "Alter Ego" and was later sold off on the It's A Wrap! sale and auction on eBay. [6]
The jumpsuit worn by Chris Evans was previously worn in TNG: "The Quality of Life" and later also sold off on eBay. [7]

Tsunkatse events

Male fighters

Three alien fighters participated in the Tsunkatse matches during the time, Seven of Nine and Tuvok were held prisoners by Penk.

The first fighter fought a match against the Hirogen fighter but lost. The second one trained with the female fighter in the quarters. The third alien fighter was present in the quarters when Seven of Nine was forced to comply and when the Hirogen fighter trained her. (VOY: "Tsunkatse")

The first and third fighters were the same species.
All three of their costumes were later sold off on the It's A Wrap! sale and auction on eBay. [8] [9] [10]


These aliens were part of the audience of several Tsunkatse matches near the Norcadian homeworld in 2376.

Another alien was a member of a species with a long face, which was also found in the Alpha Quadrant.

Yet another member of a species with a tailed head, which was additionally found in the Alpha Quadrant. (VOY: "Tsunkatse")

The second and third pictured women are from the same species. The fourth pictured alien shared some features with the Swarm species from the third season episode "The Swarm". The fifth picture alien reuses the headpiece of the Evora with a different, more prominent nosepiece.

Other unspecified locations

Alien captain

A distress call from this alien starship captain, was received by the crew of the Voyager in 2375. He died along his crew after being trapped in the chaotic space for over one year and experiencing hallucinations. (VOY: "The Fight")

This alien captain was voiced by an unknown actor.

Buck-toothed alien

Remnants of these buck-toothed aliens, who were often found in the Alpha Quadrant, were discovered by the crew of the USS Voyager in 2374.

That year, the Voyager crew discovered that the Hirogen had hunted this race, after coming across the eviscerated skin from an individual aboard a derelict vessel. Upon discovering the skin, Seven of Nine pointed out that the Borg found a similar instance done to members of Species 5174. Following The Doctor's autopsy, Janeway requested that the remains be returned to his ship in hopes that "his people may be able to retrieve him." (VOY: "Hunters")

Later that year, the skull of a member of this species was located among the many trophies aboard a Hirogen ship encountered by Voyager. (VOY: "Prey")

Holographic corner man

Intruder alien's species

This intruder alien launched an unprovoked attack against one of USS Voyager's Class 2 shuttles in 2373, killing Ensign Ahni Jetal and damaging The Doctor's program, which caused a conflict in his programming that couldn't be resolved. Following the attack, The Doctor beamed him back to his ship; Harry Kim, however, thought that The Doctor should have beamed him into space. After his ship exchanged fire with Voyager for a few minutes, he finally withdrew.

This species was reptilian in appearance, with large boney hands and long fingers. Aside from starships, they possessed other such advanced technology as transporters, and directed energy weapons (ship mounted and hand-held). According to Seven of Nine, this species was "unknown to the Borg." (VOY: "Latent Image")

This individual was simply described in the script as "an alien intruder [...] holding a massive energy beam rifle." In a second reference, he was described again as an alien intruder, but this time added that he was "huge and menacing [...] holding a massive particle beam weapon."

Another member of this species was in the audience of several Tsunkatse matches near Norcadia in 2376. (VOY: "Tsunkatse")

Salvage aliens' species

These salvage aliens were a trio of humanoids that confronted Captain Kathryn Janeway and Tuvok over the contents of a Borg debris field.

After Janeway had salvaged a replacement cortical node from a Borg drone for Seven of Nine, the salvage aliens beamed aboard, claiming salvage rights to the debris field.

A fight ensued and they were beamed out by Tom Paris, aboard the Delta Flyer. The shuttle then fought its way past the Salvage Aliens' vessels and returned to Voyager. (VOY: "Imperfection")

The leader was played by actor Michael McFall who is listed as "Salvage Alien #1" in the end credits of the episode and his stunt double Wayne King, Jr.. Both costumes were later sold off on the It's A Wrap! sale and auction on eBay. [11] [12] The other two were played by stunt actress Elle Alexander and background actor Stan G. Clayton who received no credit for their appearance. Both costumes were also sold off on the It's A Wrap! sale and auction on eBay. [13] [14]
These "Salvage Aliens" were described in the script as "three fierce-looking aliens". Salvage Alien #1 was described as "the largest of the three".