Captains

Complete List of Star Trek Captains

Television Series & Movies (Prime Timeline and Kelvin Timeline)

Below is a comprehensive list of the most notable captains who have commanded Starfleet vessels in the television series and feature films.

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The Original Series (TOS)

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The Animated Series (TAS)

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The Motion Picture Era (Movies I–VI)

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The Next Generation

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Deep Space Nine

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Voyager

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Enterprise

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Discovery

USS Discovery

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Strange New Worlds

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Lower Decks

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Prodigy

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Picard

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Starfleet Academy

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Kelvin Timeline Movies

Star Trek (2009)

• George Kirk — USS Kelvin
• Richard Robau — USS Kelvin
• Christopher Pike — USS Enterprise
• James T. Kirk — USS Enterprise

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Star Trek Into Darkness

• Christopher Pike
• James T. Kirk

USS Enterprise

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Star Trek Beyond

• James T. Kirk
• Spock (briefly assumes command)
• Commodore Paris

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Additional Historical Starfleet Captains

• Robert April
• Rachel Garrett
• Garrett (Enterprise-C)
• Robert DeSoto
• Morgan Bateson
• Ronald Tracey
• Ronald Jellico
• Erika Hernandez
• Philippa Georgiou
• Philippa Louvois (Judge, not captain)
• Solok
• Silva La Forge (future timeline)
• Ezri Dax (future timeline)
• Worf (alternate future)
• Harry Kim (alternate future)
• Seven of Nine
• Shelby
• Harriman
• John Harriman
• Matt Decker
• Garth of Izar
• Tryla Scott
• Boday (non-Starfleet commander)
• Killy (Mirror Universe)
• Lorca (Mirror Universe)

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Mirror Universe Captains

• Gabriel Lorca
• Sylvia “Killy” Tilly
• Philippa Georgiou
• Mirror Kirk
• Mirror Spock

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Animated Captains

• Carol Freeman
• Dal R’El
• Chakotay
• Janeway (Hologram Instructor)
• Beckett Mariner (temporary command)

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Total Notable Captains

Approximately 75 notable captains and acting captains appear across Star Trek television, films, alternate timelines, and animated series.

Command Officers

Star Trek First Officers

Complete Guide by Television Series & Movies

The First Officer (Executive Officer/XO) is the commanding officer’s second-in-command and is responsible for the day-to-day operation of the ship or station. Below is a comprehensive list of the principal First Officers featured throughout Star Trek.

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🚀 Star Trek: Enterprise (NX-01)

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 Star Trek: The Original Series

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🚀 Star Trek: The Animated Series

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🚀 Original Series Films

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🚀 Star Trek: The Next Generation

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🚀 Star Trek: Deep Space Nine

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🚀 Star Trek: Voyager

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🚀 Star Trek: Lower Decks

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Films

USS Enterprise

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Legendary First Officers

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Most Famous First Officers

🥇 Spock

• Captain Pike
• Captain Kirk

🥇 William T. Riker

• Captain Picard

🥇 Chakotay

• Captain Janeway

🥇 Kira Nerys

• Captain Sisko

🥇 T’Pol

• Captain Archer

🥇 Number One (Una Chin-Riley)

• Captain Pike

🥇 Saru

• Captain Lorca
• Captain Burnham

🥇 Jack Ransom

• Captain Freeman

🥇 Gwyn

• Captain Dal R’El

🥇 Seven of Nine

• Captain Liam Shaw

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Executive Officer Timeline

Science Officers

Star Trek Science Officers

Complete Guide by Television Series & Movies

The Science Officer is responsible for scientific research, sensor analysis, stellar cartography, first-contact investigations, and advising the captain on scientific matters. Below is a comprehensive guide to the principal science officers from every Star Trek television series and feature film.

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🚀 Star Trek: Enterprise (NX-01)

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 Star Trek: The Original Series

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🚀 Star Trek: The Animated Series

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🚀 Original Series Movies

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🚀 Star Trek: The Next Generation

Assistant Science Officers

• Lt. Commander Nella Daren
• Lt. Commander D’Sora
• Lt. Commander Christopher Hobson (mission specialist)

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🚀 Star Trek: Deep Space Nine

Unlike most Star Trek series, Deep Space Nine did not have a dedicated Chief Science Officer.

The station’s scientific duties were shared among several officers:

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🚀 Star Trek: Voyager

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🚀 Star Trek: Lower Decks

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

The series emphasizes scientific expertise through research institutions and synthetic life rather than a traditional shipboard science officer.

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Movies

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Mirror Universe

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Legendary Science Officers

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Most Famous Science Officers

🥇 Spock

• Original Science Officer
• First Officer
• One of Star Trek’s most iconic characters

🥇 Data

• Android with extraordinary computational abilities
• Renowned for curiosity and scientific reasoning

🥇 Tuvok

• Master of Vulcan logic and tactical analysis
• Voyager’s chief science officer for its entire journey

🥇 T’Pol

• First Vulcan assigned to an Earth Starfleet vessel
• Instrumental in Enterprise’s scientific discoveries

🥇 Michael Burnham

• Raised on Vulcan and trained as a xenoanthropologist
• Key scientific leader aboard Discovery

🥇 Jadzia Dax

• Trill science officer whose centuries of joined memories enriched scientific and diplomatic missions

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Science Officer Timeline

Medical Officers

Star Trek Medical Officers

Complete Guide by Television Series & Movies

Medical Officers are responsible for the health and well-being of Starfleet crews, scientific medical research, emergency care, and advising commanding officers on biological and medical matters. Many have become some of the most beloved characters in Star Trek history.

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🚀 Star Trek: Enterprise (NX-01)

Assistant Medical Staff

• Nurse Cutler

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 Star Trek: The Original Series

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🚀 Star Trek: The Animated Series

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🚀 Original Series Films

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🚀 Star Trek: The Next Generation

Additional Medical Staff

• Nurse Alyssa Ogawa
• Dr. Selar (Vulcan physician)

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🚀 Star Trek: Deep Space Nine

Additional Medical Staff

• Nurse Jabara
• Dr. Mora Pol

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🚀 Star Trek: Voyager

Medical Assistants

• Kes
• Tom Paris (field medic)
• Seven of Nine (medical research)

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🚀 Star Trek: Lower Decks

Medical Staff

• Nurse Westlake

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Movies

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Mirror Universe

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Legendary Medical Officers

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Most Famous Medical Officers

🥇 Dr. Leonard “Bones” McCoy

• Original Enterprise physician
• Kirk’s closest friend
• Famous for balancing compassion with blunt honesty

🥇 Dr. Beverly Crusher

• Chief Medical Officer of the Enterprise-D and Enterprise-E
• Expert surgeon and scientist
• Returned in Star Trek: Picard

🥇 The Doctor (EMH)

• Emergency Medical Hologram aboard Voyager
• Grew from a backup program into a fully realized individual
• Specialist in medicine, ethics, and holographic rights

🥇 Dr. Julian Bashir

• Brilliant physician stationed on Deep Space Nine
• Skilled in frontier medicine and genetics
• Central figure during the Dominion War

🥇 Dr. Phlox

• Denobulan physician
• Pioneer of interspecies medicine
• Introduced many viewers to Denobulan culture

🥇 Dr. Joseph M’Benga

• Chief Medical Officer under Captain Pike
• Combat medic with exceptional surgical skills
• Mentor to Nurse Chapel

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Medical Officer Timeline

Engineers

Star Trek Chief Engineers

Complete Guide by Television Series & Movies

The Chief Engineer is responsible for maintaining and operating a starship’s propulsion systems, power generation, transporters, structural integrity, and advanced technologies. Throughout Star Trek history, these officers have kept Starfleet’s ships flying under impossible circumstances.

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🚀 Star Trek: Enterprise (NX-01)

Engineering Staff

• Crewman Elizabeth Cutler
• Engineering Team Alpha

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🚀 Star Trek: Discovery

Note: Stamets is officially the ship’s science specialist and astromycologist, while Reno serves as the engineering expert. Both fulfill key engineering roles throughout the series.

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🚀 Star Trek: Strange New Worlds

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🚀 Star Trek: The Original Series

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🚀 Star Trek: The Animated Series

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🚀 Original Series Movies

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🚀 Star Trek: The Next Generation

Previous Engineers

• Logan
• Argyle
• Sarah MacDougal
• Leland T. Lynch

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🚀 Star Trek: Deep Space Nine

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🚀 Star Trek: Voyager

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🚀 Star Trek: Lower Decks

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Movies

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Mirror Universe

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Legendary Engineers

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Most Famous Engineers

🥇 Montgomery “Scotty” Scott

• Miracle worker of the original Enterprise
• Legendary warp engineer
• Designed numerous Enterprise upgrades

Famous Quote

“I’m giving her all she’s got, Captain!”

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🥇 Geordi La Forge

• Chief Engineer of the Enterprise-D and Enterprise-E
• Expert in warp propulsion and diagnostics
• Later curator of the Fleet Museum

Famous Quote

“If we can modify the phase variance, it just might work.”

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🥇 Miles O’Brien

• One of Starfleet’s finest non-commissioned engineers
• Chief of Operations on Deep Space Nine
• Veteran of the Cardassian conflicts and Dominion War

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🥇 Charles “Trip” Tucker III

• First Warp 5 chief engineer
• Instrumental in the development of early Starfleet engineering
• Helped pioneer deep-space exploration

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🥇 B’Elanna Torres

• Brilliant half-Klingon engineer
• Kept Voyager operational during its 70,000-light-year journey home

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🥇 Pelia

• Ancient Lanthanite engineer
• Mentor to Montgomery Scott
• Combined centuries of engineering experience with a unique teaching style

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Engineering Timeline

Security Officers

Star Trek Security & Tactical Officers

Complete Guide by Television Series & Movies

Security Officers (often combined with the Tactical Officer role) are responsible for shipboard security, weapons systems, away-team protection, threat assessment, and combat strategy. Some of Star Trek’s most memorable characters have served in this position.

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🚀 Star Trek: Enterprise (NX-01)

Security Team

• Military Assault Command Operations (MACOs) (Season 3–4)

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 Star Trek: The Original Series

Note: The Original Series did not have a single permanent Chief Security Officer throughout the series. Security responsibilities were shared among several officers, while tactical duties became more defined in the films.

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🚀 Star Trek: The Animated Series

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🚀 Original Series Movies

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🚀 Star Trek: The Next Generation

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🚀 Star Trek: Deep Space Nine

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🚀 Star Trek: Voyager

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🚀 Star Trek: Lower Decks

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Movies

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Mirror Universe

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Legendary Security Officers

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Most Famous Security Officers

🥇 Worf

• Series: The Next Generation, Deep Space Nine, Picard
• Species: Klingon
• Known For: Tactical brilliance, honor, and becoming one of Starfleet’s most decorated officers.

“Today is a good day to die!”

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🥇 Odo

• Series: Deep Space Nine
• Species: Changeling
• Known For: Constable of DS9, expert investigator, and shape-shifter dedicated to justice.

“Justice is justice.”

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🥇 Tuvok

• Series: Voyager
• Species: Vulcan
• Known For: Chief of Security, tactical officer, and trusted adviser to Captain Janeway.

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🥇 Malcolm Reed

• Series: Enterprise
• Species: Human
• Known For: Building Starfleet’s early tactical and security procedures.

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🥇 La’an Noonien-Singh

• Series: Strange New Worlds
• Species: Human
• Known For: Experienced security chief with deep knowledge of the Gorn and exceptional leadership under pressure.

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🥇 Tasha Yar

• Series: The Next Generation
• Species: Human
• Known For: The Enterprise-D’s original Chief of Security and Tactical Officer.

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Security Officer Timeline

Allies

Star Trek Allies

Complete Guide by Television Series & Movies

One of the defining themes of Star Trek is the friendships and alliances formed across cultures, species, and even former enemies. This guide highlights the principal allies who assist Starfleet throughout the television series and films.

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🚀 Star Trek: Enterprise

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 The Original Series

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🚀 The Animated Series

• Entire Enterprise bridge crew
• Arex
• M’Ress
• Robert April (guest)
• Cyrano Jones

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🚀 The Next Generation

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🚀 Deep Space Nine

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🚀 Voyager

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🚀 Enterprise Films (TOS)

Entire original crew:

• Kirk
• Spock
• McCoy
• Scotty
• Sulu
• Uhura
• Chekov

Additional allies:

• Saavik
• David Marcus
• Gillian Taylor
• Chancellor Gorkon
• Azetbur
• Valeris (before betrayal)

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🚀 The Next Generation Films

Additional allies include:

• Lily Sloane
• Zefram Cochrane
• Worf
• Data
• Crusher
• Troi
• Riker
• Geordi

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🚀 Lower Decks

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🚀 Prodigy

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🚀 Picard

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🚀 Starfleet Academy

Current principal allies include:

• Chancellor Nahla Ake
• Sylvia Tilly
• Dr. Kovich
• Admiral Charles Vance
• Caleb Mir
• S.A.M.
• Darem Reymi
• Genesis Lythe

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Kelvin Timeline Movies

Primary allies:

• James T. Kirk
• Spock
• Leonard McCoy
• Uhura
• Scotty
• Sulu
• Chekov
• Pike
• Carol Marcus
• Jaylah

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Legendary Federation Allies

Vulcans

• Spock
• Sarek
• Tuvok
• T’Pol
• T’Pring
• Tuvok

Klingons

• Worf
• Martok
• Kurn
• Koloth
• Kor
• Kang

Bajorans

• Kira Nerys
• Kai Opaka
• Kai Winn (occasionally cooperative, though often an adversary)
• Shakaar

Ferengi

• Quark
• Rom
• Nog

Trill

• Jadzia Dax
• Ezri Dax
• Adira Tal

Androids & Synthetic Life

• Data
• Lore (briefly allied in some stories, but primarily an antagonist)
• Soji Asha

Holograms

• The Doctor
• Hologram Janeway
• Vic Fontaine

El-Aurians

• Guinan

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Most Important Allies in Star Trek

⭐ Spock

⭐ William Riker

⭐ Data

⭐ Worf

⭐ Deanna Troi

⭐ Beverly Crusher

⭐ Geordi La Forge

⭐ Kira Nerys

⭐ Odo

⭐ Jadzia Dax

⭐ Miles O’Brien

⭐ Julian Bashir

⭐ Seven of Nine

⭐ Tuvok

⭐ Chakotay

⭐ Neelix

⭐ Guinan

⭐ Saru

⭐ Book

⭐ Una Chin-Riley

⭐ Hologram Janeway

⭐ Admiral Janeway

⭐ Sylvia Tilly

⭐ Shran

⭐ Martok

⭐ Garak

⭐ Quark

Adversaries

Star Trek Adversaries

Complete Guide by Television Series & Movies

One of the reasons Star Trek has endured for decades is its memorable adversaries. Some are recurring villains, others are rival empires, and many are morally complex opponents who challenge Starfleet’s ideals rather than serving as simple enemies.

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🚀 Star Trek: Enterprise

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 The Original Series

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🚀 The Animated Series

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🚀 Star Trek Films (Original Crew)

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🚀 Star Trek: The Next Generation

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🚀 Star Trek: Deep Space Nine

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🚀 Star Trek: Voyager

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🚀 Star Trek: Lower Decks

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Films

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Mirror Universe Adversaries

• Emperor Georgiou (before joining Discovery)
• Mirror Lorca
• Mirror Spock (initially)
• Terran Empire
• Regent Worf
• Intendant Kira

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Greatest Star Trek Villains

🥇 Khan Noonien Singh

• Appears in The Original Series, Star Trek II: The Wrath of Khan, and the Kelvin timeline films.
• Genetically engineered superhuman driven by revenge.

“From hell’s heart, I stab at thee!”

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🥇 Borg Collective

• Featured in The Next Generation, Voyager, First Contact, and Picard.
• Cybernetic hive mind seeking to assimilate all life.

“Resistance is futile.”

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🥇 Borg Queen

• Central antagonist in multiple series and films.
• Personifies the Collective.

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🥇 Gul Dukat

• Deep Space Nine
• Former Cardassian prefect of Bajor whose ambition and charisma made him one of Star Trek’s most layered villains.

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🥇 Q

• While often an antagonist early in The Next Generation, Q evolves into a mentor, challenger, and occasional ally rather than a true villain.

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🥇 General Chang

• Star Trek VI: The Undiscovered Country
• Klingon general who conspires to prevent peace between the Federation and the Klingon Empire.

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🥇 Osyraa

• Discovery
• Leader of the Emerald Chain.

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🥇 Krall

• Star Trek Beyond
• Former Starfleet captain Balthazar Edison, transformed by years of isolation.

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🥇 The Dominion

• Deep Space Nine
• A powerful interstellar empire led by the Founders and enforced by the Jem’Hadar and Vorta.

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🥇 The Gorn

• Appearing in The Original Series and Strange New Worlds, the Gorn have evolved from a single memorable foe into a major recurring threat.

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Adversary Timeline

Civilians

Star Trek Civilians

Complete Guide by Television Series & Movies

While Starfleet officers are at the heart of Star Trek, civilians often provide the cultural, diplomatic, scientific, and personal perspectives that enrich the stories. This guide highlights the most notable civilian characters from every television series and feature film.

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🚀 Star Trek: Enterprise

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🚀 Star Trek: Discovery

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🚀 Star Trek: Strange New Worlds

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🚀 Star Trek: The Original Series

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🚀 Star Trek: The Animated Series

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🚀 The Original Series Films

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🚀 Star Trek: The Next Generation

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🚀 Star Trek: Deep Space Nine

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🚀 Star Trek: Voyager

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🚀 Star Trek: Lower Decks

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🚀 Star Trek: Prodigy

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🚀 Star Trek: Picard

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🚀 Star Trek: Starfleet Academy

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🚀 Kelvin Timeline Films

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Most Famous Civilians

⭐ Guinan

• El-Aurian
• Bartender aboard the Enterprise-D
• Counselor to Captain Picard

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⭐ Quark

• Ferengi
• Owner of Quark’s Bar
• Entrepreneur and reluctant hero

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⭐ Garak

• Cardassian tailor
• Former intelligence operative
• One of DS9’s most complex characters

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⭐ Jake Sisko

• Writer
• Son of Captain Benjamin Sisko

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⭐ Kasidy Yates

• Freighter captain
• Wife of Benjamin Sisko

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⭐ Keiko O’Brien

• Botanist
• Teacher
• Wife of Miles O’Brien

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⭐ Neelix

• Talaxian ambassador
• Voyager’s morale officer, chef, and guide

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⭐ Cleveland Booker (“Book”)

• Courier
• Environmentalist
• Key ally to Discovery

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⭐ Gillian Taylor

• Marine biologist
• Featured in Star Trek IV: The Voyage Home

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⭐ Carol Marcus

• Creator of the Genesis Project
• Featured in Star Trek II and Star Trek Into Darkness (Kelvin timeline)

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⭐ Vic Fontaine

• Self-aware holographic lounge singer
• Advisor and confidant to the Deep Space Nine crew

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⭐ Lwaxana Troi

• Betazoid ambassador
• Mother of Deanna Troi
• Diplomat known for her larger-than-life personality

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Civilian Organizations

• Federation Science Council
• Daystrom Institute
• Federation News Service
• Federation Archaeological Council
• Merchant Marine
• Civilian Transport Services
• Federation Colonies
• Bajoran Commerce Guild
• Ferengi Commerce Authority
• Orion Syndicate (criminal civilian organization)

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Civilian Timeline