List of Star Trek characters (T–Z)

This article lists characters from Star Trek in their various canonical incarnations. This includes fictional major characters and fictional minor characters created for Star Trek, fictional characters not originally created for Star Trek, and real-life persons appearing in a fictional manner, such as holodeck recreations.

Characters from all series, listed alphabetically

Key

T

Character	Actor	Appearances	Description
Tactics Officer	Peter Parros	A Matter of Honor	Klingon officer serving aboard the IKS Pagh in 2365. He escorted William Riker to see Captain Kargan, but kept looking askance at the commander because he'd never seen a human before. Later, in the mess hall, he also admitted that he never knew humans had a sense of humor. Regarding his family, his mother was still living, but his father was killed in battle at Tranome Sar.
	Jeffrey Nordling	Past Prologue	Bajoran terrorist who comes aboard Deep Space Nine asking for asylum only to escape Cardassian pursuit and begin work on his next attack
	John Fleck	The Mind's Eye	Romulan officer and scientist who successfully "conditioned" Geordi La Forge to kill Klingon governor Vagh of Krios, although the assassination failed. Taibak served aboard Commander Sela's Warbird in late 2367, and his "brainwashing" efforts were part of a larger Romulan plot to disrupt the alliance between the Federation and the Klingon Empire.
	Paul Dooley	The Wire recurring thereafter	Former head of the Obsidian Order and the father of Elim Garak
	Fionnula Flanagan	Inheritance	A Soong-type android created in the image of Noonien Soong's dying wife, Juliana Soong; at Juliana's death, Noonien transferred his wife's consciousness into the android who awoke believing she was Juliana Soong; later left Noonien, married Pran Tainer and took up residence on planet Atrea IV
	Jack Donner	Enterprise Incident">Enterprise (NX-01)">Enterprise Incident	Subcommander of the Romulan fleet that brackets the Enterprise when she "strays" into Romulan space. After Captain Kirk steals the cloaking device and beams back aboard the Enterprise, Tal sets off in pursuit. When his Commander orders him to destroy the Federation starship, he attempts to comply, but fails because Mr. Scott managed to successfully install the cloaking device and render the Enterprise "invisible".
	Zoe McLellan	The Haunting of Deck Twelve Good Shepherd	Bajoran sensor analyst on Voyager, assigned to Astrometrics. Despite her evident insecurity, she later demonstrated bravery, refusing to abandon Janeway in danger.
	Nancy Youngblut	Displaced	Nyrian who explained a new customized habitat to the Voyager crew, as part of the Nyrian's forced relocation scam.
	Todd Stashwick	Kir'Shara	Romulan agent who posed as a Vulcan major for many years, working with the radical Administrator V'Las of the Vulcan High Command to force reunification between their two peoples. A "very long time" before 2154, Talok served under T'Pol in the Tomed mission. In 2154, V'Las ordered Talok to eradicate the remaining Syrrannites. Talok tracked down Jonathan Archer in Vulcan's Forge and attempted to take the Kir'Shara, but Archer escaped. After V'Las was removed and the Vulcan High Command disbanded, Talok's position was compromised and he was forced to leave Vulcan.
	None	Imaginary Friend, Rascals	Imaginary friend from the childhood of the enigmatic female El-Aurian bartender Guinan, who ran Ten Forward, the lounge aboard the USS Enterprise-D. The Tarcassian razor beast was a winged, furry animal noted for its spiny wings, and its loping way of locomotion. When Guinan was troubled, she'd talk to it, and she enjoyed imagining that she was curling up on its warm belly.
	Carolyn Seymour	Contagion	Romulan subcommander of the IRW Haakona. She spotted and chased the USS Yamato NCC-71807 throughout the Romulan Neutral Zone before finally witnessing its destruction due to systems failures. When confronted almost immediately by the Enterprise-D, she denies any involvement in the Yamato's destruction and orders Captain Jean-Luc Picard to leave the Neutral Zone. Later, at Iconia, her "excuse" for having followed the Enterprise-D was to claim the planet for the Romulan Star Empire, but when Commander William Riker points out that neither side can claim anything in the Neutral Zone, she again orders the starship to leave, or else she'll destroy it and the Away Team on Iconia. In truth, Taris is deeply frustrated; earlier, the Haakona tapped into the Yamatos log as it was being transmitted to the Enterprise-D, and has now become crippled by Iconian "malware". When Picard steps onto her ship from the Iconian portal, she blames him for sabotage, but seems satisfied that he'll die when her ship autodestructs. Picard, however, is beamed back to the Enterprise-D, and Riker shares the "memory wipe" solution that Geordi La Forge developed with Taris.
	Spencer Garrett	The Drumhead	Part-Romulan medical technician falsely accused of sabotage during an investigation aboard the Enterprise-D.
	Alexander Enberg	Lower Decks	Vulcan ensign and junior engineer aboard the Enterprise-D. His ideas for improving warp drive operation rankle La Forge at first, but La Forge later sees the merit in Taurik's suggestions and invites him to help test them.
	Catherine Hicks	TVH	Researcher and tour guide at the Cetacean Institute in Sausalito on Earth during the 1980s who joins a pair of whales bound for the 23rd century
	Kipleigh Brown	The Forgotten	EPS control specialist killed in the Xindi attack on the Enterprise in the Azati Prime system
	Marc Alaimo	The Neutral Zone	Romulan commander who, in 2364, made the first "official" contact with the Federation after more than 53 years of Romulan isolation. He was primarily charged with discovering why several Romulan outposts along the Neutral Zone had disappeared, but the re-emergence was also orchestrated to show off the Romulans' massive new D'Deridex class "warbird" starships. Tebok ominously proclaimed "we are back" to Captain Picard.
	Elkanah J. Burns	The Vengeance Factor	Temarek was an Acamarian Gatherer and a member of Clan Lornak. During treaty negotiations in 2366, he discovered the corpse of Volnoth, who was killed by Sovereign Marouk's servant Yuta because of ancient clan rivalries.
	Randy James	The Outrageous Okona recurring thereafter	Uncredited human male who worked in Ten Forward in 2365. He served a drink to a Vulcan science officer while Thadiun Okona was beamed aboard, served drinks to several people in Ten Forward when Data had a conversation with Kareen Brianon in the bar, served a variety of Klingon food to Commander Riker, who was assigned to serve as first officer on the Klingon Bird-of-Prey IKS Pagh and was also working in Ten Forward when Riker tried to show Wesley Crusher how to flirt by "playing" with Guinan and when Riker had a date with a female crewmember.
	Paul Winfield	WOK	Captain of the starship Reliant. Controlled by Khan Noonien Singh via a Ceti eel, forcing him to nearly kill Admiral Kirk. Rather than murder a fellow Starfleet officer, he committed suicide. Terrell is also featured in the Star Trek Vanguard book series, along with Dr. Carol Marcus. Together they begin work on the foundations of Project Genesis.
	Josh Drennen Christopher Goodman	Proving Ground recurring thereafter	Xindi Primate, assistant to Degra on the Xindi planet-destroying weapon project
	Anthony James	The Neutral Zone	Romulan subcommander and first officer aboard Commander Tebok's Warbird. With Tebok's permission, he agrees that the Romulans and the Federation should share information regarding the mysterious disappearances of outposts on both sides of the Neutral Zone.
	William O'Connell	Journey to Babel	An Orion agent posing as a member of the Andorian delegation to the 2267 "Babel" conference. His mission is to create mutual suspicion among the Federation ambassadors aboard the Enterprise. To that end, he kills Tellarite ambassador Gav and tries to frame Vulcan ambassador Sarek for the crime. Later, he attacks Captain Kirk before being caught and revealed as an Orion. To prevent himself from revealing any further information, he commits suicide by taking poison.
	Leigh McCloskey	Warlord	Ilaran tyrant who cheated death by transferring his consciousness to other bodies
	Mikael Salazar	Prodigal Daughter	Brother of Ezri Dax
	Kevin Rahm	Prodigal Daughter	Brother of Ezri Dax
	Leigh Taylor-Young	Prodigal Daughter	Mother of Ezri Dax
	Mary Wiseman	DSC, "Runaway"	-
	David Ogden Stiers	Half a Life	Scientist from the planet Kaelon II. Had a romantic relationship with Lwaxana Troi, but was forced to commit ritual suicide at the age 60 to comply with his culture's directives.
	Tim Russ	Invasive procedures	T'Kar was a male Klingon alive during the mid to late-24th century. In his adult life, he served as a mercenary and, along with Yeto, was one of two Klingons employed by the Trill Verad to steal the Dax symbiont in the 2370s.
	None	Kir'Shara	Vulcan student of Surak and one of the first Kolinahr masters. He is entombed beneath the T'Karath Sanctuary.
	Judith Anderson	SFS	Vulcan high priestess who performed the fal-tor-pan ceremony in which Spock's body and katra were rejoined following his death.
	Gabrielle Ruiz	wej Duj	Independent-minded Vulcan who defies her commander on the Sh'Vhal and is transferred to Starfleet.
	Jolene Blalock	Carbon Creek	A Vulcan, and T'Pol's second foremother who was part of an expedition to Earth in the 1950s, and credited as selling the patent to velcro, 1955, although taking place after the launch of Sputnik, 1957, to further the education of a young boy
	Leon Russom	The Die Is Cast	Starfleet vice admiral at Starfleet Security in 2371. After Enabran Tain launched a joint Obsidian Order/Tal Shiar attack on the Founders' homeworld, Toddman ordered Commander Benjamin Sisko to evacuate Starbase Deep Space Nine of all nonessential personnel and put the USS Defiant NX-74205 on standby alert. He believed that when the Jem'Hadar inevitably counterattacked, they would not be too particular about their targets. Toddman denied Sisko permission to take the Defiant into the Gamma Quadrant and look for Odo; Sisko's top priority was to guard Bajor. Later, after learning that Sisko went anyway, Toddman decided to forgo any courts-martial, but, with tongue in cheek, promised to either prosecute or promote Sisko if he pulled a stunt like that again.
	Frank Corsentino	Ménage à Troi	Ferengi Daimon who became infatuated with Lwaxana Troi, kidnapping her as well as Starfleet officers William Riker and Deanna Troi
	Andreas Katsulas	The Enemy recurring thereafter	Romulan commander, recurring antagonist for Captain Picard and the crew of the Enterprise-D
	Brian Thompson	To the Death	Jem'Hadar soldier in service of the Dominion
	Cyia Batten Tracy Middendorf Melanie Smith	Indiscretion recurring thereafter	Half Cardassian/half Bajoran daughter of Gul Dukat and Tora Naprem
	JD Cullum Rick Pasqualone	Redemption, Parts I and II, The Sword of Kahless	Klingon, illegitimate son of Duras, brother of Lursa and B'Etor. Sought to become Chancellor, leading to the Klingon Civil War.
	Carolyn Seymour	Face of the Enemy	Romulan commander of the IRW Khazara. She received the Sotarek Citation for prevailing in a surprise battle with the Klingons. She had no love for the Tal Shiar, particularly because they dragged her father out of his home in the middle of the night, merely for speaking his mind.
	Stephen Liska	SFS	Klingon officer aboard Commander Kruge's Bird-of-Prey. He and his boarding party are killed when the Enterprise's self-destruct sequence destroys the Federation starship. He may have been Kruge's first officer, as he assumed the command chair when Kruge was on the surface of Genesis.
B'Elanna Torres	Roxann Dawson Jessica Gaona	Caretaker recurring thereafter	Klingon-Human hybrid and former Maquis member who served as Chief Engineer on the USS Voyager, eventually the wife of Tom Paris.
	Javier Grajeda	Lineage	Uncle of B'Elanna Torres, brother of John Torres
	Paul Robert Langdon	Lineage	Cousin of B'Elanna Torres, son of Carl Torres
	Nicole Sarah Fellows	Lineage	Cousin of B'Elanna Torres, daughter of Carl Torres
	Juan Garcia	Lineage, Author, Author	Father of B'Elanna Torres and former husband of Miral
	Gilbert R. Leal	Lineage	Cousin of B'Elanna Torres, son of Carl Torres
	James Horan	Fair Trade	Kolaati trader who dealt in illegal substances near the Nekrit Expanse
	Joan Stuart Morris	Suspicions	Vulcan scientist specializing in subspace morphology
	Celia Lovsky Betty Matsushita Kara Zediker	Amok Time, Darkling, The Forge recurring thereafter	Vulcan who led the Syrranite rebellion against the Vulcan High Command, later presided over the Koon-ut-kal-if-fee ceremony in which Spock is forced to fight Captain Kirk after Spock was rejected by his bride-to-be, T'Pring. She is also the only person ever to turn down a seat on the Federation Council. The English pop group T'Pau was named after the character, as was a fictional Vulcan vessel.
T'Pol	Jolene Blalock	Broken Bow	Commander T'Pol, born 2088. Vulcan female who serves as the science officer aboard the starship Enterprise.
	Arlene Martel Mary Rice Gia Sandhu	Amok Time, Strange New Worlds recurring thereafter	Vulcan female who was bonded to Spock but backed out of her commitments and married Stonn
	Eric Menyuk	Where No One Has Gone Before recurring thereafter	Humanoid from Tau Alpha C with exceptional mental abilities, including mastery over space and time.
		Arena	Starfleet commodore assigned to the Earth Observation Outpost on Cestus III. According to Kirk, he "sets a good table". Travers was killed when the Gorn attacked and destroyed the outpost because it infringed on their territory.
	William Campbell Rhys Darby	The Squire of Gothos, Wedding Bell Blues	Near-omnipotent being who toyed with the crew of the Enterprise. He proved to be an immature representative of his discorporate species, and very much a "spoiled brat". Bartell LaRue and Barbara Babcock provided the voices of his "parents" in the installment. He is later shown to be part of the Q Continuum, with his father voiced by John de Lancie.
	Charles Dennis	Desert Crossing	Torothan Chancellor and member of the ruling clan
	Michael Sarrazin	The Quickening	Native of the planet Teplan in the Gamma Quadrant who "aided" those on his planet infected with a terminal, painful, and slow-acting disease known as the Teplan Blight by administering them toxic herbs, which killed the patients without pain
Deanna Troi	Marina Sirtis	Encounter at Farpoint recurring thereafter, GEN, FCT, INS, Pathfinder recurring thereafter, NEM, These Are The Voyages..., Nepenthe recurring thereafter, No Small Parts	The ship's Counselor aboard the Enterprise-D and -E; she also served on the USS Titan. Half-Betazoid, half-Human, wife of William Riker, mother of Thaddeus and Kestra Troi.
	Amick Byram	Dark Page	Husband of Lwaxana Troi, father of Deanna and Kestra Troi.
	R. J. Williams Zachary Benjamin Josh Bell	The Child	"Son" of Deanna Troi, fathered by an alien light-entity. After a very short gestation period, 'The Child' grew from infant to an eight-year-old within a day. After posing a threat to the Enterprise-D due to emitting Eichner-radiation, the alien had to abort its experiment and the child subsequently died.
	Andreana Weiner	Dark Page	The first daughter of Lwaxana Troi, who died as a child. Not to be confused with Deanna and William Riker's daughter, who appears in Star Trek: Picard season one.
Lwaxana Troi	Majel Barrett	Haven recurring thereafter, The Forsaken recurring thereafter	Daughter of the Fifth House, Holder of the Sacred Chalice of Rixx, Heir to the Five Holy Rings of Betazed; mother of Deanna and Kestra Troi and wife to Ian Andrew Troi. Constantly on manhunt, she became somewhat of an annoying menace to Captain Picard when she was on board the Enterprise-D, as well as later on to Odo on DS9.
	Martha Hackett	The Search, Parts I and II	Romulan subcommander who was assigned to operate and protect the cloaking device that her government lent to the USS Defiant NX-74205 in 2371.
	Edna Glover	TMP	Female Vulcan Master who was to have officiated the ceremony recognizing Spock's attainment of the Kolinahr. However, when he stopped her from giving him a symbolic necklace of his achievement, T'Sai mind-melded with him and discovered that he was preoccupied by a "consciousness" calling to him from deep space. She immediately ended the ceremony and pronounced that Spock had not achieved Kolinahr after all.
	Tasia Valenza	Coming of Age	Female Vulcan who took the Starfleet Academy entrance exam on Relva VII in 2364, along with Wesley Crusher and Oliana Mirren. All three of them lost out to Mordock, who subsequently became the first Benzite in Starfleet.
Charles "Trip" Tucker III	Connor Trinneer	Broken Bow recurring thereafter	Commander; Chief Engineer and Second Officer, Enterprise NX-01
	Tom Wright	Tuvix	The hybrid of Tuvok and Neelix, which was the result of a transporter accident.
Tuvok	Tim Russ	Caretaker recurring thereafter, Through The Looking Glass, Grounded, The Last Generation	The Vulcan tactical officer and second officer aboard USS Voyager. Becomes commander by 2381 and captain by 2401, and is subjected to a Changeling impersonation before he is rescued after the events of Frontier Day. Member of the Terran Resistance in the Mirror Universe in DS9.
Mark Twain	Jerry Hardin	Time's Arrow	The 19th century author, first known as Samuel Clemens, accidentally time traveled when crew members of the Enterprise-D traveled back in time.
	Peter Duryea	The Cage	Navigator aboard the Enterprise under Captain Christopher Pike.

U

Character	Actor	Appearances	Description
	Renée Jones	Aquiel	Haliian Communications technician at Relay Station 47. Accused of murder, but found innocent. Had a brief romantic relationship with Geordi La Forge
Nyota Uhura	Nichelle Nichols Zoe Saldaña Celia Rose Gooding	TOS, TAS, TMP, WOK, SFS, TVH, TFF, TUC, ST09, STID, STB, SNW	Chief Communications Officer on board the Enterprise and Enterprise-A. Her given name is revealed in the Star Trek reboot.
	John Anderson	The Survivors	The alias used by a "Douwd", a member of a discorporate race of near-omnipotent "immortal beings of disguises and false surroundings" called the Douwds. Repentant for the genocide he committed against another race, known as the Husnock, through psychic powers in blind revenge for the death of Rishon Uxbridge, his human wife.
	Anne Haney	The Survivors	The human wife of Kevin Uxbridge, whom the Husnock killed; her Douwd husband Kevin Uxbridge avenged her death by destroying the entire Husnock species in blind revenge over his grief.

V

Character	Actor	Appearances	Description
	Jack Shearer	The Forsaken	Bolian ambassador sent to Deep Space Nine to investigate the Bajoran wormhole in 2369.
	Edward Wiley	The Mind's Eye	Klingon governor of Krios in late 2367. He accused Starfleet of supplying weapons to Kriosian rebels, who sought to gain their planet's independence from the Klingon Empire. However, Data and Geordi La Forge discovered that the weapons actually had been constructed and distributed by the Romulans. While Vagh was aboard the Enterprise-D to witness the crew's investigation into the matter, he was nearly killed by La Forge, who had been "conditioned" by the Romulans to shoot him.
	Kim Cattrall	TUC	Starfleet lieutenant and Enterprise-A helmsman who was complicit in the assassination of Klingon chancellor Gorkon. Kim Cattrall chose the Eris element of the character's name, for the Greek goddess of strife, which was Vulcanised by the addition of the "Val" at the behest of director Nicholas Meyer.
	Catherine Shirriff	SFS	An elegant Klingon agent who stole a copy of Admiral Kirk's summary of the Genesis Project. She booked passage on the Merchantman to rendezvous with a Bird-of-Prey commanded by Kruge, to whom she presented the information. When Kruge found out that she had watched the summary herself, he destroyed the Merchantman. Valkris and Kruge may have been lovers, as her final endearment to him was, "Success, my lord, and my love."
	Susanna Thompson	The Next Phase	Romulan officer aboard Mirok's ship who conspires with him to destroy the Enterprise-D. They decide to send a muon feedback wave along the Enterprise's power transfer beam. The muon particles would collect inside the starship's Dilithium core and explode when the Enterprise engaged warp speed.
	Jane Daly	The Most Toys	Assistant to Kivas Fajo for 14 years. Helping Data escape from Fajo's ship led to her death.
Vash	Jennifer Hetrick	Captain's Holiday, Qpid, Q-Less	An antiquarian, with a habit of pursuing artifacts with unethical zeal as a profiteer, who falls in love with Picard. She first appeared in the Star Trek: The Next Generation episode "Captain's Holiday", in which Jean-Luc Picard vacationed on Risa. Vash had discovered the Tox Uthat, an artifact thieves were determined to take from her; with Picard's help, the thieves were thwarted. During this adventure, she and Picard fell in love. They met up again in the episode "Qpid", in which Vash became annoyed on finding that none of Picard's senior staff had even heard of her, despite his explanation that he is "a very private man". Q abducted her and the Enterprise senior staff, casting them into a Robin Hood scenario, with Picard playing Robin Hood and Vash as Maid Marian. The result was Vash leaving with Q to the Gamma Quadrant, to scour archaeological sites there. Vash reappeared in the Star Trek: Deep Space Nine episode "Q-Less" two years later, in which episode she mistook for an artifact an "egg", which subsequently hatched as a lifeform at the end of the episode. In 2017, CBR ranked Vash the 11th "fiercest" female character of the Star Trek universe.
	Christopher Liam Moore	Distant Origin	Assistant to Professor Gegen
	Laura Drake	A Matter of Honor	Klingon officer serving aboard the IKS Pagh in 2365. She said that Commander William Riker was not very attractive, but that she would "have him". She and Zegov were inquisitive and wanted to know how Riker would "endure" them... sexually. Before leaving the mess hall, she told Riker that she might be back for him.
	Stephen Yoakam	Inter Arma Enim Silent Leges recurring thereafter	Romulan subcommander who was to replace Senator Kimara Cretak at a weekly Deep Space Nine meeting while she attended a conference on Romulus in 2375. Shortly afterward, Velal was promoted to general. After all Federation and Romulan ships were rendered powerless by a Breen energy dissipation weapon, Velal was genuinely dismayed to learn that only the Klingons stood between the alliance and total defeat at the hands of the Dominion. Near the end of the war, when the Dominion pulled all its forces back to Cardassian space, Velal's instinct was to merely "contain them within their perimeter" instead of attacking. He changed his mind when Vice Admiral William Ross, Captain Benjamin Sisko and General Martok decide on the latter.
	John Glover	Invasive procedures	Verad was an unjoined Trill and failed host candidate who briefly stole the Dax symbiont from Jadzia Dax in 2370.
	None	TMP	A sentient being that evolved from Voyager 6, a fictitious space probe from the 20th century that vanished into a black hole and was given life by a race of living machines. The story of V'Ger and its return to Earth to seek "the creator" forms the plot for the first feature film in the Star Trek series, Star Trek: The Motion Picture. V'Ger's story is also expanded upon in the novelization, and various novels, most notably William Shatner's The Return. Some novels, comics, and videogames have strongly implied that V'Ger was the progenitor of the Borg, or was encountered by the Borg culture's direct ancestors. The Gene Roddenberry-authored novelization of the movie consistently named "V'Ger" with the spelling "Vejur" throughout the novelization's text, to preserve the surprise ending.
	Ken Olandt	Bloodlines	Bok, a Ferengi, altered Vigo's DNA to make him appear to be the son of Enterprise Captain Jean-Luc Picard. Bok used Vigo as bait as part of a plan to avenge his son's death at the hand of Picard.
	None	Bloodlines	Mother of Jason Vigo, one-time love interest of Jean-Luc Picard.
	Susan Oliver Melissa George	The Cage, The Menagerie If Memory Serves	Sole survivor of Earth science expedition that crashed on planet Talos IV, "repaired" by Talosians and prepared to be "Eve" when a suitable "Adam" could be found.
	Spice Williams	TFF	Klingon first officer aboard Captain Klaa's Bird-of-Prey. She's extremely muscular with severely short hair and a no-nonsense attitude. She speaks English, as she demonstrates when responding to the Enterprise-A's hail and pretending to be Starfleet Command.
	Fionnula Flanagan	Fallen Hero	Vulcan ambassador who negotiated the first territorial accords between Vulcan and Andoria in 2097. She also met a young T'Pol at the Ka'Tann conference. In 2152, she infiltrated the government of Mazar to expose corrupt officials and had to be extracted by Enterprise NX-01.
	Robert Foxworth	The Forge recurring thereafter	Vulcan administrator of the Vulcan High Command. Addressed as "excellency". Until he was removed as leader in 2154, he pursued a radical agenda that was contrary to the true teachings of Surak. He militarized the Vulcan fleet and suppressed the practice of mind melds. He was secretly working with a Romulan agent, Talok, to force the reunification of their peoples. When V'Las tried to start a war with the Andorian Imperial Guard, one of his ministers, Kuvak, shot him, thus stopping the conflict and disbanding the Vulcan High Command.
	Marc Lawrence	The Vengeance Factor	Volnoth was an Acamarian Gatherer and a member of Clan Lornak. During negotiations with the Gatherer's leader Chorgan in 2366, he was killed by Sovereign Marouk's servant Yuta because of ancient clan rivalries.
	Alexander Enberg	Fair Trade recurring thereafter	Starfleet ensign and Vulcan engineer aboard the Starship Voyager. He bears a striking resemblance to Ensign Taurik, another Vulcan engineer who served on the Enterprise-D.
	Jack Gwaltney	Storm Front	Alien enemy in Agent Daniels' Temporal Cold War who joins with the Nazis during World War II, enabling them to defeat the Allies.
	Stephen McHattie	In the Pale Moonlight	A key member of the Romulan Senate from 2360 to 2374, Vice-Chairman of the Tal Shiar, secretary of the War Plans Council, and one of Proconsul Neral's most trusted advisors. Ardently pro-Dominion, Vreenak was key in negotiating the non-aggression pact between the Romulan Star Empire and the Dominion in late 2373. However, his death caused the Romulans to join the Dominion War on the side of the Federation-Klingon alliance.

W

Character	Actor	Appearances	Description
	Charlie Brill	Trials and Tribble-ations	Alias used by disgraced Klingon spy Arne Darvin to gain passage aboard the USS Defiant
		Move Along Home	Aliens from the Gamma Quadrant who force the cheating Quark to play an 'Honest Game" with four of DS9 Staff as game tokens!
	Guy Vardaman	Too Short a Season recurring thereafter, GEN	Lieutenant Darien Wallace was born on Altair IV on stardate 22991.6 as the son of Dennis and Laurel Wallace. He was a Starfleet crew member who served aboard the USS Enterprise-D from 2364 to 2371. Wallace's personal information was displayed on a viewscreen to Counselor Deanna Troi in a psychic phenomenon in Eye of the Beholder. The character appeared in 66 episodes and Star Trek Generations, but was never credited.
	Paul Popowich	Valiant	Red Squad cadet who commanded the USS Valiant after the death of Captain Ramirez.
	Barry Russo James Doohan	The Ultimate Computer, One of Our Planets Is Missing	Starfleet commodore commanding both the USS Lexington and a battlegroup of starships, later retired from the service to become governor of the planet Mantilles.
	René Auberjonois	TUC	Starfleet colonel who proposes "Operation Retrieve" to rescue Kirk and McCoy from Qo'noS. Later, during the Khitomer Conference, West disguises himself as a Klingon and attempts to assassinate Chancellor Azetbur and/or the Federation President. Scotty, however, spots "Klingon West" in his sniper's nest and shoots him down. Klingon colonel Worf notices from the would-be assassin's shattered skull that the blood is not Klingon, whereupon West's mask is removed and his true identity revealed.
	Byron Morrow	For the World Is Hollow and I Have Touched the Sky	Starfleet admiral who relieves the Enterprise of any further responsibility regarding the asteroid ship Yonada. He says that Starfleet Command will take care of the problem, while the Enterprise must continue on her mission.
Weyoun	Jeffrey Combs	To the Death recurring thereafter	Vorta male; cloned at least eight times. Confidant of the Founders, he's eventually the leading Vorta of all Dominion operations in the Alpha Quadrant.
	Scarlett Pomers Emily Leibovitch Brooke Stephens Vanessa Branch	Deadlock recurring thereafter	Half-Ktarian, half-Human female; daughter of Greskrendtregk and Samantha Wildman; born aboard Voyager shortly before the entire ship and crew are duplicated. Dies on one ship, survives on the other. The surviving Naomi, carried by her version of Ensign Kim, crosses to the Naomi-less/Kim-less ship just before “their” version of Voyager is destroyed. She later almost dies while still a relative newborn due to complications of coping with the planet's environment that she and the Voyager crew were stranded on at the time but was saved by the leader of a native tribe using herbs and roots; grew up fast due to her father's genes. In "Shattered", per the title, an adult Naomi from 23 years in the future interacts with crew members from various other time frames.
Samantha Wildman	Nancy Hower	Elogium recurring thereafter	Ensign, joined Voyager as xenobiologist, not knowing she was pregnant by her Ktarian husband Greskrendtregk; gave birth to Naomi in 2372.
Vedek, later Kai Winn Adami	Louise Fletcher	In the Hands of the Prophets recurring thereafter	Bajoran female, engineer of a failed plot to assassinate rival Vedek Bareil, later elected "Kai"
	James Nardini	Fair Trade	Talaxian male; encountered Neelix at the Nekrit Supply Depot.
Worf	Michael Dorn	Encounter at Farpoint recurring thereafter, The [Way of the Warrior (Star Trek: Deep Space Nine)\|The Way of the Warrior] recurring thereafter, GEN, FCT, INS, NEM, Disengage recurring thereafter	The elder of two sons of Mogh; an officer aboard the Enterprise-D before joining space station Deep Space Nine and the starship Defiant; afterward, an aide to Klingon Chancellor Martok and an adopted member of his House. Federation Ambassador to the Klingon homeworld Qo'noS in the late 2370s; later Captain of the Enterprise-E, then subcontractor agent for Starfleet Intelligence by 2401 and meditation teacher by 2402. Husband of K'Ehleyr and later of Jadzia Dax for a year.
	Michael Dorn	TUC	Klingon colonel who, in 2293, acts as defense counsel for Kirk and McCoy during their trial for "assassinating" Chancellor Gorkon. Later, during the Khitomer Conference, after Scotty kills a Klingon sniper, Worf notes that the color of the victim's blood is not Klingon at all. The would-be assassin is revealed to be Starfleet colonel West.
	None	Journey's End	Starfleet commander and aide to Admiral Alynna Nechayev.
	Casey Biggs	Shadows and Symbols	A physician at a psychiatric hospital in a false vision given Benjamin Sisko by the Pah-wraiths

X

Y

Z

Character	Actor	Appearances	Description
	David Lee Smith	Darkling	Mikhal Traveller who fell in love with Kes
	Daniel Riordan	Coming of Age	Humanoid species characterized by webbed hands. Information about them was included in the Federation database as early as the mid-23rd century. As a culture, Zaldans were easily infuriated by courtesy, as they viewed it as a form of phony social behavior designed to cover true feelings.
	Mariette Hartley	All Our Yesterdays	Inhabitant of one of Sarpidion's ice ages who briefly became romantically entangled with Spock
	P. Flannery	A Matter of Honor	Klingon officer serving aboard the IKS Pagh in 2365. She and Vekma were inquisitive and wanted to know how Commander William Riker would "endure" them... sexually. Zegov, however, never spoke. She merely eyed Riker from across the crowded mess hall.
Grand Nagus Zek	Wallace Shawn	The Nagus recurring thereafter	Grand Nagus of the Ferengi Alliance
	Robert Picardo	Projections recurring thereafter, Doctor Bashir, I Presume?	Developer of the Emergency Medical Hologram. Began to create an LMH based on Julian Bashir and unwittingly discovered Bashir's genetically altered nature.
	Michael Bell	Encounter at Farpoint	Leader of the Bandi people
	Ned Vaughn	Tapestry	Jean-Luc Picard's Academy classmate
	Clancy Brown	Desert Crossing	Charismatic Torothan leader of the rebellion against the ruling clan on Toroth. Having exhausted all peaceful avenues trying to reform the government, he had turned to terrorism. In 2152, he contacted Enterprise NX-01 in hopes that Captain Jonathan Archer would be willing to help in his cause. After Archer was trapped on Toroth, Zobral risked his life to rescue him, even though Archer refused to help in his revolt.