Ensign Culhane was a 24th century Starfleet officer assigned as relief conn officer, engineer, and tactical officer aboard the USS Voyager under Captain Kathryn Janeway. Culhane became stranded in the Delta Quadrant along with the rest of the crew in 2371.
Culhane was on duty on an aft station of the bridge when the Voyager encountered the Vidiians for the first time. Later he worked in main engineering when the Voyager set course into an asteroid. (VOY: "Phage")
Culhane served as relief operations officer on the bridge during the absence of Harry Kim and manned an aft station when Kim returned from Banea. After the case of the Baneans was solved, he had a meal in the mess hall. (VOY: "Ex Post Facto")
He had a meal in the mess hall a few days later, shortly before the Voyager made first contact with the Sikarians and was on duty in engineering when a non-corporeal being accessed the control over the ship. (VOY: "Prime Factors", "Cathexis")
Culhane was part of the engineering team which worked in engineering when B'Elanna Torres beamed samples of atomic fragments from the Metreon cloud around Rinax into a test cylinder in engineering. He was working at a console near the entrance of engineering. (VOY: "Jetrel")
Culhane was on duty in engineering when Tuvok and the former Maquis crewmembers Chell, Gerron, Henley, and Dalby passed the location to get access to the Jefferies tubes. Along with Kurt Bendera he watched them sceptically. Later, he was working with another engineer at the warp core while several systems were malfunctioning due to a virus. (VOY: "Learning Curve")
He was working on the bridge when the crew found rust and a Ford truck drifting in space. He informed Tom Paris that he'll run a diagnostic before he left to an aft station. During the blue alert and the landing maneuver of Voyager on a Class L planet, he stood next to a female lieutenant when an explosion happended next to them. While on the planet, he passed the captain's ready room when Chakotay entered to talk to the captain about the future of Voyager. He was present on the bridge and listened to Captain Janeway when blue alert was activated again and Voyager left the planet of the 37's. (VOY: "The 37's")
Culhane manned the tactical station on the bridge and was replaced by Tuvok. He then operated one of the aft stations on the bridge when Voyager tried to locate Commander Chakotay aboard his shuttlecraft. He stood next to Captain Janeway at his station when Harry Kim detected debris of Chakotay's shuttle. (VOY: "Initiations")
Culhane was on duty in engineering when Voyager discovered a distortion ring in space. He was talking to a lieutenant while working on a console when Janeway, Chakotay, and Paris entered engineering. Torres later gave him, Susan Nicoletti, and William McKenzie a briefing about the situation. While a site-to-site transport was executed, Culhane was working near the warp core. (VOY: "Twisted")
Culhane manned an aft station on the bridge, next to a lieutenant jg, when Voyager arrived at "Planet Hell". He was also present when the Reptohumanoid vessel engaged Voyager and Captain Janeway decided to take Voyager into the atmosphere of the planet to rescue Tom Paris and Neelix from the surface. (VOY: "Parturition")
Culhane was on duty on the bridge when Tom Paris broke the transwarp threshold in the shuttlecraft Cochrane. Later, he was on the bridge again when Paris, in his mutated form, kidnapped Captain Janeway and escaped to transwarp in the Cochrane. (VOY: "Threshold")
Culhane was on duty in main engineering when the Voyager received data from one of its probes which was found by the Borg. He later armed himself with a Starfleet phaser rifle when the ship prepared to enter Borg space. (VOY: "Scorpion")
Manning the operations station on the bridge, Culhane alerted Captain Janeway over com of the intercepted distress call, discovered to be sent by a Serosian HD25 Isomorphic Projection. (VOY: "Revulsion")
The following year, Culhane served at Tom Paris' station on the bridge while Paris was serving thirty days in the brig. According to The Doctor, in a recent encounter Culhane "confused the enemy with a brilliant series of evasive maneuvers." Janeway considered promoting Culhane to chief conn officer. Upon hearing this, Paris asked The Doctor to pass along to the Captain that "Culhane's brilliant maneuvers almost knocked me unconscious. You'd think he'd never flown a shuttle, much less a starship." (VOY: "Thirty Days")
Culhane's biomimetic copy was on duty in engineering and the last crewmember along with Seven of Nine able to work. He suffered from degradation due to radiation from a new warp core technology. (VOY: "Course: Oblivion")
On stardate 53764, when Tal Celes went to the main engineering, she rapidly crossed with Culhane in a corridor. Later, he covered Mortimer Harren's duties in junction room 16, when Harren was forced to go on his first away mission. (VOY: "Good Shepherd")
Culhane was part of the away team, including Seven of Nine, Chakotay, Tuvok, and Tom Paris, which beamed to the Hirogen training facility where they found the Hirogen scientist Donik. (VOY: "Flesh and Blood")
He was working on a console in engineering when the ship stranded in the Void and another ship beamed cargo, food, and technology from aboard the Voyager, including Culhane's console. (VOY: "The Void")
Culhane celebrated First Contact Day in the mess hall of the Voyager with fellow crewmembers. Later he worked on the bridge and smiled when the Talaxians Dexa and Brax visited the bridge. (VOY: "Homestead")
He was working in main engineering, when The Doctor disguised as a hologram of B'Elanna Torres asked Vorik for the location of the bio-neural gel packs. Later he was also among the crewmembers who were evacuated from engineering by Torres. (VOY: "Renaissance Man")
A hologram of Culhane was part of a Jupiter Station Holoprogramming Center program in which The Doctor experienced the time when he was first activated aboard Voyager again. In this program, Culhane was one of the wounded crewmembers in engineering. (VOY: "Projections")
Culhane was played by regular background actor and stand-in Louis Ortiz who received no credit for his appearances. His voice in the fourth season episode "Revulsion" was provided by an unknown actor.
- "Phage" (Season 1)
- "The Cloud"
- "Eye of the Needle"
- "Ex Post Facto"
- "Prime Factors"
- "State of Flux"
- "Learning Curve"
- "Projections" (hologram)
- "The 37's"
- "Initiations" (Season 2)
- "Persistence of Vision"
- "Death Wish"
- "The Thaw"
- "Basics, Part I"
- "Basics, Part II"
- "The Chute" (Season 3)
- "Future's End, Part II"
- "Favorite Son"
- "Before and After"
- "Worst Case Scenario"
- "Revulsion" (Season 4)
- "Thirty Days" (Season 5)
- "Course: Oblivion" (biomimetic copy only)
- "One Small Step" (Season 6)
- "Ashes to Ashes"
- "Good Shepherd"
- "Flesh and Blood" (Season 7)
- "The Void"
- "Human Error"
- "Friendship One"
- "Renaissance Man"