This article lists characters in the various canonical incarnations of Star Trek. This includes fictional main and major characters created for the franchise.
| Character | Actor(s) | Appearances | Rank | Posting | Position | Species |
|---|---|---|---|---|---|---|
| Airiam | Sara Mitich | Seasons 1–2 (DSC) | Lt. Commander | USS Discovery | Science Officer | Human cyborg |
| Hannah Cheesman | ||||||
| Jonathan Archer | Scott Bakula | Seasons 1–4 (ENT) | Captain | Enterprise NX-01 | Commanding Officer | Human |
| Soji Asha | Isa Briones | Seasons 1-2 (PIC) | Civilian | Romulan Reclamation Site | Anthropologist | Android |
| Ayala | Tarik Ergin | Seasons 1–7 (VOY) | Lieutenant, JG (provisional) | USS Voyager | Helmsman (S7) Security Officer (S1-7) Maquis (previous) |
Human |
| Azan | Kurt Wetherill | Seasons 6–7 (VOY) | Civilian | USS Voyager Passenger | Wysanti/xB | |
| Reginald Barclay | Dwight Schultz | Seasons 3–4,6–7 (TNG) Movies (FCT) Seasons 2,6–7 (VOY) |
Lt. Commander (VOY) Lieutenant, JG (TNG, FCT) |
Starfleet Command (VOY) USS Enterprise-E (FCT) USS Enterprise-D (TNG) |
Pathfinder Project (VOY) Engineering Officer (TNG, Movies) |
Human |
| Bareil Antos | Philip Anglim | Seasons 1–3,6 (DS9) | Vedek | Bajor resident | Bajoran Religious Leader (S1-3) | Bajoran |
| Julian Bashir | Alexander Siddig | Seasons 1–7 (DS9) Season 6 (TNG) |
Lieutenant (S4-7) Lieutenant, JG (S1-3) |
Deep Space 9 | Chief Medical Officer | Human |
| B'Etor | Gwynyth Walsh | Seasons 4–5,7 (TNG) Movies (GEN) Season 1 (DS9) |
Commander, Klingon Empire | Bird of Prey | First Officer | Klingon |
| Brad Boimler | Jack Quaid | Season 1 (LOW) | Ensign | USS Cerritos | Human | |
| Boothby | Ray Walston | Season 5 (TNG) Season 5 (VOY) |
Civilian | Starfleet Academy | Groundskeeper | Human |
| Borg Queen | Alice Krige | Seasons 5–7 (VOY) Movies (FCT) Season 2 (PIC) |
None | Borg Collective | Leader of Borg Collective | Borg |
| Susanna Thompson | ||||||
| Annie Wersching | ||||||
| Phillip Boyce | John Hoyt | "The Cage" | Lt. Commander | USS Enterprise | Chief Medical Officer | Human |
| Brunt | Jeffrey Combs | Seasons 3–7 (DS9) | Civilian | Ferenginar resident | Ferengi Commerce Liquidator | Ferengi |
| R. A. Bryce | Ronnie Rowe Jr. | Seasons 1–3 (DSC) | Lieutenant, JG | USS Discovery | Communications Officer | Human |
| Gabrielle Burnham | Sonja Sohn | Seasons 2-3 (DSC) | None | Section 31 | Intelligence Operative Astrophysicist |
Human |
| Michael Burnham | Sonequa Martin-Green | Seasons 1–3 (DSC) | Commander (S1-2) Crewman (S1) |
USS Discovery (S1-2) USS Shenzhou (S1) |
Science Officer (S2) Science Specialist (S1) First Officer (S1) |
Human |
| Joseph Carey | Josh Clark | Seasons 1,5–7 (VOY) | Lieutenant | USS Voyager | Engineering Officer | Human |
| Chakotay | Robert Beltran | Seasons 1–7 (VOY) | Commander (provisional) | USS Voyager | First Officer (S1-7) Maquis (S1) |
Human |
| Christine Chapel | Majel Barrett | Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, TVH) |
Commander (TMP, TVH) Crewman (TOS, TAS) |
Starfleet Command (TVH) USS Enterprise (TOS, TAS, TMP) |
Starfleet Command Officer (TVH) Medical Officer (TMP) Nurse (TOS, TAS) |
Human |
| Jess Bush | Seasons 1-2 (SNW) | Crewman (SNW) | USS Enterprise (SNW) | Nurse (SNW) | ||
| Pavel Chekov | Walter Koenig | Seasons 2–3 (TOS) Movies (TMP, WOK, SFS, TVH, TFF, TUC, GEN) Season 5 (DS9) |
Commander (WOK, SFS, TVH, TFF, TUC, GEN) Lieutenant (TMP) |
USS Enterprise-A (TVH, TFF, TUC) USS Reliant (WOK) USS Enterprise (TOS, TMP, SFS) |
Chief Security Officer (SFS, TVH, TFF, TUC) First Officer (WOK) Weapons Officer (TMP) Navigator (TOS) |
Human |
| Anton Yelchin | ST09, STID, STB | Ensign (ST09, STID, STB) | USS Enterprise (ST09, STID, STB) | Navigator (ST09, STID, STB) | ||
| J. M. Colt | Laurel Goodwin | "The Cage" | Yeoman | USS Enterprise | Yeoman | Human |
| Katrina Cornwell | Jayne Brook | Seasons 1-2 (DSC) | Vice Admiral | Starfleet Command | Admiral of Starfleet | Human |
| Kimara Cretak | Adrienne Barbeau | Season 7 (DS9) | Senator | Deep Space 9 | Romulan Representative | Romulan |
| Megan Cole | ||||||
| Beverly Crusher | Gates McFadden | Seasons 1,3–7 (TNG) Movies (GEN, FCT, INS, NEM) Season 3 (PIC) |
Commander | USS Enterprise-E (FCT, INS, NEM) USS Enterprise-D (S1,3-7, GEN) Starfleet Command (S2) |
Chief Medical Officer (S1, 3–7, Movies) Head of Starfleet Medical (S2) |
Human |
| Wesley Crusher | Wil Wheaton | Seasons 1–4,5,7 (TNG) Season 2 (PIC) Movies (NEM) |
Lieutenant, JG (NEM) Cadet (S4-7) Ensign (S3-4) Ensign (acting) (S1-3) Civilian (S1) |
USS Titan (NEM) Starfleet Academy (S4-7) USS Enterprise-D (S1-4) |
Engineering Officer (NEM) Starfleet Cadet (S4-7) Helmsman (S1-4) |
Human |
| Hugh Culber | Wilson Cruz | Season 1–3 (DSC) | Lt. Commander | USS Discovery | Chief Medical Officer | Human/xB[1] |
| Jal Culluh | Anthony De Longis | Seasons 1–3 (VOY) | First Maje | Kazon-Nistrim | Leader of Kazon-Nistrim | Kazon |
| Elizabeth Cutler | Kellie Waymire | Season 1 (ENT) | Crewman | Enterprise NX-01 | Entomologist | Human |
| Leonardo da Vinci | John Rhys-Davies | Seasons 3–4 (VOY) | None | USS Voyager Program | Holographic Character | Hologram |
| Damar | Casey Biggs | Seasons 4–7 (DS9) | Legate (S7) Gul (S6-7) Glinn (S4-6) |
Cardassia Prime CMS Groumall (S4) |
Leader of Cardassian Union (S7) Dominion Leader (S6-7) Vigilante (S5) Cardassian Officer (S4) |
Cardassian |
| Daniels | Matt Winston | Seasons 1–4 (ENT) | Crewman | Unknown | Temporal Agent | Human |
| Data | Brent Spiner | Seasons 1–7 (TNG) Movies (GEN, FCT, INS, NEM) Season 1 (PIC) |
Lt. Commander | USS Enterprise-E (FCT, INS, NEM) USS Enterprise-D (S1-7, GEN) |
Chief Operations Officer (TNG, GEN, FCT, INS, NEM) | Android |
| Ezri Dax | Nicole de Boer | Season 7 (DS9) | Lieutenant, JG (S7) Ensign (S7) |
Deep Space 9 | Counselor | Trill |
| Jadzia Dax | Terry Farrell | Seasons 1–6 (DS9) | Lt. Commander (S4-6) Lieutenant (S1-3) |
Deep Space 9 | Chief Science Officer | Trill |
| Degra | Randy Oglesby | Season 3 (ENT) | Civilian | Xindi Council | Scientist | Xindi-Primate |
| Keyla Detmer | Emily Coutts | Seasons 1–3 (DSC) | Lieutenant (S1-2) Lieutenant, JG (S1) |
USS Discovery (S1-2) USS Shenzhou (S1) |
Helmsman | Human |
| The Doctor | Robert Picardo | Seasons 1–7 (VOY) | None | USS Voyager | Chief Medical Officer | Hologram |
| Dolim | Scott MacDonald | Season 3 (ENT) | Commander | Xindi Council | Council Member | Xindi-Reptilian |
| Dukat | Marc Alaimo | Seasons 1–7 (DS9) | Gul | Cardassia Prime | Religious Leader (S6-7) Leader of Cardassia (S5) Vigilante (S4-5) Freighter Commander (S4) Cardassian Officer (S1-4) |
Cardassian |
| Michael Eddington | Kenneth Marshall | Seasons 3–5 (DS9) | Civilian (S4-5) Lt. Commander (S3-4) |
Deep Space 9 (S3-4) | Maquis (S7) Security Officer (S5-7) |
Human |
| Elnor | Evan Evagora | Seasons 1-2 (PIC) | Cadet (S2) Qowat Milat (S1) |
USS Excelsior (S2) Vashti resident (S1) |
Starfleet Cadet (S2) Qalankhkai to Picard (S1) |
Romulan |
| Evek | Richard Poe | Season 7 (TNG) Season 2 (DS9) Season 1 (VOY) |
Gul | CMS Vetar | Commanding Officer | Cardassian |
| Female Changeling | Salome Jens | Seasons 3–4,6–7 (DS9) | None | Cardassia Prime | Leader of Dominion | Changeling |
| Vic Fontaine | James Darren | Seasons 6–7 (DS9) | None | Deep Space 9 Program | Holographic Entertainer | Hologram |
| Maxwell Forrest | Vaughn Armstrong | Seasons 1–4 (ENT) | Vice Admiral | Starfleet Command | NX Project | Human |
| Elim Garak | Andrew Robinson | Seasons 1–7 (DS9) | Civilian | Deep Space 9 resident | Tailor | Cardassian |
| Garrison | Adam Roarke | "The Cage" | Chief Petty Officer | USS Enterprise | Communications Officer | Human |
| Philippa Georgiou | Michelle Yeoh | Seasons 1-3 (DSC) Season 1 (S31) |
Captain (S1) | NCIA-93 (S2) Section 31 (S1-3) USS Shenzhou (S1) |
Intelligence Operative (S1-3) Emperor, Mirror Universe (S1) Commanding Officer (S1) |
Human |
| Sonya Gomez | Lycia Naff | Season 2 (TNG) Season 2 (LOW) |
Ensign | USS Enterprise-D | Engineering Officer | Human |
| Gowron | Robert O'Reilly | Seasons 4–6 (TNG) Seasons 3–7 (DS9) |
Chancellor | Klingon High Council | Chancellor of Klingon Empire | Klingon |
| Amanda Grayson | Jane Wyatt | Season 2 (TOS) Movies (TVH, TFF) |
Civilian | Vulcan resident | Teacher | Human |
| Majel Barrett | Seasons 1 (TAS) | |||||
| Winona Ryder | ST09 | |||||
| Mia Kirshner | Season 1 (DSC) Season 2 (SNW) | |||||
| Guinan | Whoopi Goldberg | Seasons 2–6 (TNG) Movies (GEN, NEM) Season 2 (PIC) |
Civilian | USS Enterprise-D | Bartender | El-Aurian |
| J. Hayes | Steven Culp | Season 3 (ENT) | Major | Enterprise NX-01 | MACO Officer | Human |
| Erika Hernandez | Ada Maris | Season 4 (ENT) | Captain | Columbia NX-02 | Commanding Officer | Human |
| Hogan | Simon Billig | Seasons 2–3 (VOY) | Ensign (provisional) | USS Voyager | Engineering Officer Maquis (previous) |
Human |
| Mr. Homn | Carel Struycken | Seasons 1–5 (TNG) | Civilian | Betazed resident | Servant | Unknown |
| Hugh | Jonathan Del Arco | Seasons 5–7 (TNG) Season 1 (PIC) |
None | Romulan Reclamation Site | Borg Drone (TNG) Director of Romulan Reclamation Site (PIC) |
Borg (TNG) Human/xB (PIC) |
| Icheb | Manu Intiraymi | Seasons 6–7 (VOY) | Civilian (VOY) | USS Voyager resident (VOY) | Astrometrics (VOY) | Borg (VOY S6) Brunali/xB (VOY S6-7, PIC) |
| Casey King | Season 1 (PIC) | Lieutenant (PIC) | USS Coleman (PIC) | Command Officer (PIC) | ||
| Ishka | Cecily Adams | Seasons 3, 5–7 (DS9) | Civilian | Ferenginar resident | Philanthropist | Ferengi |
| Andrea Martin | ||||||
| Kathryn Janeway | Kate Mulgrew | Seasons 1–7 (VOY) Movies (NEM) |
Vice Admiral (NEM) Captain (VOY) |
Starfleet Command (NEM) USS Voyager (VOY) |
Starfleet Admiral (NEM) Commanding Officer (VOY) |
Human |
| Jannar | Rick Worthy | Season 3 (ENT) | Civilian | Xindi Council | Scientist | Xindi-Arboreal |
| Michael Jonas | Raphael Sbarge | Season 2 (VOY) | Crewman (provisional) | USS Voyager | Engineering Officer Maquis (previous) |
Human |
| Agnes Jurati | Alison Pill | Seasons 1-2 (PIC) | Civilian | Daystrom Institute | Cyberneticist | Human |
| K'Ehleyr | Suzie Plakson | Seasons 2, 4 (TNG) | Ambassador | Earth resident | Federation Ambassador | Klingon/Human |
| Kes | Jennifer Lien | Seasons 1–4, 6 (VOY) | Civilian | USS Voyager | Medic Aeroponics |
Ocampa |
| Khan Noonien Singh | Ricardo Montalbán | Season 1 (TOS) Movies (WOK, STID) |
Civilian | SS Botany Bay (TOS) | Superhuman | Human |
| Benedict Cumberbatch | ||||||
| Harry Kim | Garrett Wang | Seasons 1–7 (VOY) | Ensign | USS Voyager | Chief Operations Officer | Human |
| Kira Nerys | Nana Visitor | Seasons 1–7 (DS9) | Colonel (S7) Commander (S7) Major (S1-6) |
Deep Space 9 | Commanding Officer (S7) First Officer (S1-7) |
Bajoran |
| George Kirk | Chris Hemsworth | ST09 | Captain | USS Enterprise (ST09) | Commanding Officer | Human |
| James T. Kirk | William Shatner | Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, WOK, SFS, TVH, TFF, TUC, GEN, ST09, STID, STB) Season 5 (DS9) Seasons 1-2 (SNW) |
Captain (TOS, TAS, TFF, TUC, GEN, STID, STB) Rear Admiral (TMP, WOK, SFS, TVH) Cadet (ST09)Lieutenant (SNW) |
USS Enterprise-A (TVH, TFF, TUC) USS Enterprise (TOS, TAS, TMP, WOK, SFS, ST09, STID, STB, SNW) USS Farragut (SNW) |
Commanding Officer (TOS, TAS, TMP, WOK, SFS, TVH, TFF, TUC, STID, STB) First Officer (ST09, SNW) |
Human |
| Chris Pine | ||||||
| Paul Wesley | ||||||
| Kol | Kenneth Mitchell | Season 1 (DSC) | General, Klingon Empire | Klingon High Council | Council Member | Klingon |
| Kor | John Colicos | Season 1 (TOS) Season 1 (TAS) Seasons 2, 4, 7 (DS9) |
Dahar Master (DS9) Commander, Klingon Empire (TOS, TAS) |
Klingon Defense Force (DS9) IKS Klothos (TOS, TAS) |
Defence Officer (DS9) Commanding Officer (TOS, TAS) |
Klingon |
| Kurn | Tony Todd | Seasons 3–5 (TNG) Season 4 (DS9) |
Crewman, Bajoran Militia (DS9) Captain, Klingon Empire (TNG) |
Deep Space 9 (DS9) IKS Hegh'ta (TNG) |
Security Officer (DS9) Commanding Officer (TNG) |
Klingon |
| Geordi La Forge | LeVar Burton | Seasons 1–7 (TNG) Movies (GEN, FCT, INS, NEM) Season 5 (VOY) |
Lt. Commander (S3-7, Movies) Lieutenant (S2) Lieutenant, JG (S1) |
USS Enterprise-E (FCT, INS, NEM) USS Enterprise-D (S1-7, GEN) |
Chief Engineer (S2-7, Movies) Helmsman (S1) |
Human |
| La'an Noonien-Singh | Christina Chong | Seasons 1-2 (SNW) | Lieutenant | USS Enterprise | Chief Security Officer | Human |
| Laris | Orla Brady | Seasons 1-2 (PIC) | Civilian | Earth resident | Vineyard Manager | Romulan |
| Leeta | Chase Masterson | Seasons 3–7 (DS9) | Civilian | Deep Space 9 resident | Dabo Girl | Bajoran |
| Leland | Alan van Sprang | Season 2 (DSC) | Captain | NCIA-93 Section 31 |
Commanding Officer Intelligence Operative |
Human |
| Li Nalas | Richard Beymer | Season 2 (DS9) | Navarch | Deep Space 9 | Liaison Officer | Bajoran |
| Linus | David Benjamin Tomlinson | Seasons 2–3 (DSC) | Lieutenant, JG | USS Discovery | Science Officer | Saurian |
| Gabriel Lorca | Jason Isaacs | Season 1 (DSC) | Captain | USS Discovery | Commanding Officer | Human |
| Lore | Brent Spiner | Seasons 1, 4, 6–7 (TNG) | Civilian | Android | ||
| L'Rell | Mary Chieffo | Seasons 1–2 (DSC) | Chancellor | Klingon High Council | Chancellor of Klingon Empire | Klingon |
| Lursa | Barbara March | Seasons 4–5, 7 (TNG) Movies (GEN) Season 1 (DS9) |
Captain, Klingon Empire | Bird of Prey | Commanding Officer | Klingon |
| Maihar'du | Tiny Ron Taylor | Seasons 1–3, 5–7 (DS9) | Civilian | Ferenginar resident | Attendant to Grand Nagus | Hupyrian |
| Mallora | Tucker Smallwood | Season 3 (ENT) | Civilian | Xindi Council | Chairman | Xindi-Primate |
| Carol Marcus | Bibi Besch | Movies (WOK, SFS, STID) | Civilian (WOK, SFS) Lieutenant (STID) |
Project Genesis (WOK, SFS) USS Enterprise (STID) |
Biologist | Human |
| Alice Eve | ||||||
| Beckett Mariner | Tawny Newsome | Season 1 (LOW) | Ensign | USS Cerritos | Human | |
| Martok | J. G. Hertzler | Seasons 4–7 (DS9) | Chancellor (S7) General, Klingon Empire (S4-7) |
Deep Space 9 IKS Rotarran |
Chancellor of Klingon Empire (S7) Commander of Klingon Forces (S4-7) |
Klingon |
| Travis Mayweather | Anthony Montgomery | Seasons 1–4 (ENT) | Ensign | Enterprise NX-01 | Helmsman | Human |
| Leonard McCoy | DeForest Kelley | Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, WOK, SFS, TVH, TFF, TUC, ST09, STID, STB) Season 1 (TNG) Season 5 (DS9) |
Admiral (TNG) Commander (TMP, WOK, SFS, TVH, TFF, TUC) Lt. Commander (TOS, TAS, ST09, STID, STB) |
USS Enterprise-A (TVH, TFF, TUC) USS Enterprise (TOS, TAS, TMP, WOK, SFS, ST09, STID, STB) |
Chief Medical Officer | Human |
| Karl Urban | ||||||
| Mezoti | Marley S. McClean | Seasons 6–7 (VOY) | Civilian | USS Voyager Passenger | Norcadian | |
| Mila | Julianna McCarthy | Seasons 3,7 (DS9) | Civilian | Cardassia resident | Housekeeper | Cardassian |
| Mora Pol | James Sloyan | Seasons 2,5 (DS9) | Civilian | Bajor resident | Scientist | Bajoran |
| Morn | Mark Allen Shepherd | Seasons 1–7 (DS9) Season 1 (VOY) |
Civilian | Deep Space 9 resident | Courier | Lurian |
| Mot | Ken Thorley | Seasons 5–6 (TNG) | Civilian | USS Enterprise-D | Barber | Bolian |
| Harry Mudd | Roger C. Carmel | Seasons 1–2 (TOS) Season 1 (TAS) Season 1 (DSC) Season 1 (ST) |
Civilian | Smuggler | Human | |
| Rainn Wilson | ||||||
| Raffi Musiker | Michelle Hurd | Seasons 1-3 (PIC) | Commander (S2) Civilian (S1) |
Stafleet Intelligence (S3) USS Excelsior (S2) |
Chief Operations Officer (S2) | Human |
| Narek | Harry Treadaway | Season 1 (PIC) | Zhat Vash Operative | Romulan | ||
| Alynna Nechayev | Natalia Nogulich | Seasons 6–7 (TNG) Seasons 2–3 (DS9) |
Fleet Admiral | Starfleet Command | Admiral of Starfleet | Human |
| Neelix | Ethan Phillips | Seasons 1–7 (VOY) | Ambassador (S7) Civilian (S1-7) |
Talaxian Asteroid Colony (S7) USS Voyager (S1-7) |
Federation Ambassador (S7) Chef (S1-7) |
Talaxian |
| Nhan | Rachael Ancheril | Seasons 2-3 (DSC) | Commander | USS Discovery (S2-3) USS Enterprise (S2) |
Chief Security Officer | Barzan |
| Susan Nicoletti | Christine Delgado | Seasons 1–4,7 (VOY) | Lieutenant, JG | USS Voyager | Engineering Officer | Human |
| Nilsson | Sara Mitich | Seasons 2-3 (DSC) | Lieutenant | USS Discovery | Operations Officer | Human |
| Nog | Aron Eisenberg | Seasons 1–7 (DS9) | Lieutenant, JG (S7) Ensign (S6-7) Cadet (S4-5) Civilian (S1-4) |
Deep Space 9 Starfleet Academy (S4-5) |
Operations Officer (S6-7) Starfleet Cadet (S4-5) Bar Employee (S1-4) Student (S1-4) |
Ferengi |
| Kashimuro Nozawa | John Tampoya | Seasons 1–4,7 (VOY) | Ensign | USS Voyager | Operations Officer | Human |
| Keiko O'Brien | Rosalind Chao | Seasons 4–6 (TNG) Seasons 1–7 (DS9) |
Civilian | Deep Space 9 (DS9) USS Enterprise-D (TNG) |
Teacher/Botanist (DS9) Botanist (TNG) |
Human |
| Miles O'Brien | Colm Meaney | Seasons 1–7 (TNG) Seasons 1–7 (DS9) |
Chief Petty Officer | Starfleet Academy (DS9 S7) Deep Space 9 (DS9 S1-7) USS Enterprise-D (TNG S1-6) |
Academy Professor (DS9 S7) Chief of Operations (DS9 S1-7) Transporter Chief (TNG S2-6) Helmsman (TNG S1) |
Human |
| Molly O'Brien | Hana Hatae | Seasons 1–7 (DS9) | Civilian | Deep Space 9 resident | Student | Human |
| Odo | René Auberjonois | Seasons 1–7 (DS9) | Constable (unofficial) | Deep Space 9 | Chief of Security | Changeling |
| Alyssa Ogawa | Patti Yasutake | Seasons 3–7 (TNG) Movies (GEN, FCT) |
Lieutenant, JG (S7, Movies) Ensign (S3-7) |
USS Enterprise-E (FCT) USS Enterprise-D (S3-7, GEN) |
Nurse | Human |
| Oh | Tamlyn Tomita | Season 1 (PIC) | Commodore | Starfleet Command | Head of Starfleet Security | Vulcan |
| Opaka Sulan | Camille Saviola | Seasons 1–2,4 (DS9) | Kai | Bajor resident | Bajoran Religious Leader (S1) | Bajoran |
| Joann Owosekun | Oyin Oladejo | Seasons 1–3 (DSC) | Lieutenant, JG | USS Discovery | Operations Officer | Human |
| Owen Paris | Warren Munson Richard Herd |
Seasons 2,5–7 (VOY) | Admiral | Starfleet Command | Pathfinder Project | Human |
| Tom Paris | Robert Duncan McNeill | Seasons 1–7 (VOY) | Lieutenant, JG (S1-7) Ensign (S5-6) |
USS Voyager | Helmsman | Human |
| Phlox | John Billingsley | Seasons 1–4 (ENT) | Civilian | Enterprise NX-01 | Chief Medical Officer | Denobulan |
| Jean-Luc Picard | Patrick Stewart | Seasons 1–7 (TNG) Movies (GEN, FCT, INS, NEM) Season 1 (DS9) Seasons 1-3 (PIC) |
Admiral (PIC) Captain (TNG, Movies) |
Earth resident (PIC) USS Enterprise-E (FCT, INS, NEM) USS Enterprise-D (TNG S1-7, GEN) |
Commanding Officer (TNG, Movies) | Human |
| Renée Picard | Penelope Mitchell | Season 2 (PIC) | Civilian | Europa Mission | NASA Astronaut | Human |
| Christopher Pike | Jeffrey Hunter | "The Cage" Season 1 (TOS) |
Admiral (STID) Captain (TC, TOS, ST09, DSC) |
Starfleet Command (STID) USS Enterprise (TC, ST09, DSC) |
Starfleet Admiral (STID) Commanding Officer (TC, ST09, DSC) |
Human |
| Bruce Greenwood | ST09, STID | |||||
| Anson Mount | Season 2 (DSC) Seasons 1-2 (SNW)re | |||||
| Tracy Pollard | Raven Dauda | Seasons 1–3 (DSC) | Lieutenant, JG | USS Discovery | Medical Officer | Human |
| Katherine Pulaski | Diana Muldaur | Season 2 (TNG) | Commander | USS Enterprise-D | Chief Medical Officer | Human |
| Q | John de Lancie | Seasons 1–4, 6–7 (TNG) Season 1 (DS9) Seasons 2–3, 7 (VOY) Season 1 (LOW) Season 2 (PIC) |
None | Q Continuum resident | Q Continuum | Q |
| Quark | Armin Shimerman | Season 7 (TNG) Seasons 1–7 (DS9) Season 1 (VOY) |
Civilian | Deep Space 9 resident | Bar Owner | Ferengi |
| Janice Rand | Grace Lee Whitney | Season 1 (TOS) Movies (TMP, TVH, TUC) Season 3 (VOY) |
Commander (TUC) Chief Petty Officer (TVH) Crewman (TMP) Yeoman (TOS) |
USS Excelsior (TUC) Starfleet Command (TVH) USS Enterprise (TOS, TMP) |
First Officer (TUC) Starfleet Command Officer (TVH) Transporter Chief (TMP) Yeoman (TOS) |
Human |
| Rebi | Cody Wetherill | Seasons 6–7 (VOY) | Civilian | USS Voyager Passenger | Wysanti/xB | |
| Malcolm Reed | Dominic Keating | Seasons 1–4 (ENT) | Lieutenant | Enterprise NX-01 | Tactical Officer | Human |
| Jet Reno | Tig Notaro | Seasons 2-3 (DSC) | Lt. Commander | USS Discovery (S2-3) USS Hiawatha (S2) |
Chief Engineer | Human |
| Gen Rhys | Patrick Kwok-Choon | Seasons 1-3 (DSC) | Lieutenant | USS Discovery | Tactical Officer | Human |
| William Riker | Jonathan Frakes | Seasons 1–7 (TNG) Movies (GEN, FCT, INS, NEM) Season 2 (VOY) Season 4 (ENT) Seasons 1,3 (PIC) Season 1 (LOW) |
Captain (NEM, PIC, LOW) Commander (TNG S1-7, Movies) |
USS Zheng He (PIC S1) USS Titan (NEM, LOW S1) USS Enterprise-E (FCT, INS, NEM) USS Enterprise-D (TNG S1-7, GEN) |
Commanding Officer (NEM, PIC S1, LOW S1) First Officer (TNG S1-7, Movies) |
Human |
| Cristóbal "Chris" Rios | Santiago Cabrera | Seasons 1-2 (PIC) | Captain (S2) Civilian (S1) |
USS Stargazer (S2) La Sirena (S1) |
Commanding Officer (S2) Civilian Starship Captain (S1) |
Human |
| Narissa Rizzo | Peyton List | Season 1 (PIC) | Zhat Vash Operative | Romulan | ||
| Ro Laren | Michelle Forbes | Seasons 5–7 (TNG) | Lieutenant (S7) Ensign (S5-6) |
USS Enterprise-D | Maquis (S7) Helmsman (S5-7) |
Bajoran |
| Rom | Max Grodénchik | Seasons 1–7 (DS9) | Grand Nagus (S7) Crewman (S4-7) Civilian (S1-4) |
Deep Space 9 | Grand Nagus (S7) Maintenance Engineer (S4-7) Bar Employee (1–4) |
Ferengi |
| William Ross | Barry Jenner | Seasons 6–7 (DS9) | Vice Admiral | Deep Space 9 | Military Commander | Human |
| Michael Rostov | Joseph Will | Seasons 1–2 (ENT) | Crewman | Enterprise NX-01 | Engineering Officer | Human |
| Alexander Rozhenko | Jon Paul Steuer | Seasons 4–7 (TNG) Season 6 (DS9) |
Crewman, Klingon Empire (DS9) Civilian (TNG) |
IKS Rotarran (DS9) | Weapons Officer (DS9) | Klingon/Human |
| Brian Bonsall | ||||||
| Saavik | Kirstie Alley | Movies (WOK, SFS, TVH) | Lieutenant, JG | USS Grissom (SFS, TVH) USS Enterprise (WOK) |
Science Officer (SFS, TVH) Navigator (WOK) |
Vulcan/Romulan |
| Robin Curtis | ||||||
| Sarek | Mark Lenard | Season 2 (TOS) Seasons 1 (TAS) Movies (TMP, SFS, TVH, TUC, ST09) Seasons 3, 5 (TNG) Seasons 1–2 (DSC) |
Ambassador | Vulcan resident | Federation Ambassador | Vulcan |
| Ben Cross | ||||||
| James Frain | ||||||
| Saru | Doug Jones | Seasons 1–3 (DSC) Season 1 (ST) |
Commander | USS Discovery (S1-3) USS Shenzhou (S1) |
First Officer (S1-2) Science Officer (S1) |
Kelpien |
| Hoshi Sato | Linda Park | Seasons 1–4 (ENT) | Ensign | Enterprise NX-01 | Communications Officer | Human |
| Sela | Denise Crosby | Seasons 4–5 (TNG) | Commander, Romulan Empire | Unknown | Romulan Officer | Romulan/Human |
| Seska | Martha Hackett | Seasons 1–3,7 (VOY) | None (S1-3) Ensign (provisional) (S1) |
Kazon-Nistrim (S1-3) USS Voyager (S1) |
Kazon Affiliate (S1-3) Engineering Officer (S1) Science Officer (S1) Maquis Infiltrator (previous) |
Cardassian |
| Seven of Nine | Jeri Ryan | Seasons 4–7 (VOY) Seasons 1-3 (PIC) |
Civilian | La Sirena (PIC S2) USS Voyager (VOY) |
Vigilante (PIC) Astrometrics (VOY) |
Human/xB |
| Montgomery Scott | James Doohan | Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, WOK, SFS, TVH, TFF, TUC, GEN, ST09, STID, STB) Season 6 (TNG) Season 5 (DS9) |
Captain (SFS, TVH, TFF, TUC, GEN, TNG) Commander (TMP, WOK) Lt. Commander (TOS, TAS, ST09, STID, STB) |
USS Enterprise-A (TVH, TFF, TUC) USS Enterprise (TOS, TAS, TMP, WOK, SFS, ST09, STID, STB) |
Chief Engineer | Human |
| Simon Pegg | ||||||
| Shakaar Edon | Duncan Regehr | Seasons 3–5 (DS9) | First Minister | Bajor resident | First Minister of Bajor | Bajoran |
| Thy'lek Shran | Jeffrey Combs | Seasons 1–4 (ENT) | General | Kumari | Andorian Imperial Guard | Andorian |
| Silik | John Fleck | Seasons 1–4 (ENT) | Senior Official | Suliban Cabal | Terrorist | Suliban |
| Benjamin Sisko | Avery Brooks | Seasons 1–7 (DS9) | Captain (S3-7) Commander (S1-3) |
Deep Space 9 | Commanding Officer | Human |
| Jake Sisko | Cirroc Lofton | Seasons 1–7 (DS9) | Civilian | Deep Space 9 resident | Journalist (S5-7) Student (S1-5) |
Human |
| Jennifer Sisko | Felecia M. Bell | Seasons 1,3–4 (DS9) | Lieutenant (S1) | USS Saratoga (S1) | Starfleet Officer (S1) | Human |
| Joseph Sisko | Brock Peters | Seasons 4,6–7 (DS9) | Civilian | Earth resident | Restaurant Owner | Human |
| Sarah Sisko | Deborah Lacey | Season 7 (DS9) | Civilian | Earth resident | Holophotographer | Human |
| Luther Sloan | William Sadler | Seasons 6–7 (DS9) | None | Section 31 | Intelligence Operative | Human |
| Soval | Gary Graham | Seasons 1–4 (ENT) | Ambassador | Earth | Vulcan Ambassador to Earth | Vulcan |
| Spock | Leonard Nimoy | "The Cage" Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, WOK, SFS, TVH, TFF, TUC, ST09, STID, STB) Season 5 (TNG) Season 5 (DS9) Season 2 (DSC) Season 1 (SNW) |
Ambassador (TNG, ST09, STID) Captain (WOK, SFS, TVH) Commander (TC, TOS, TAS, TMP, ST09, STID, STB, DSC) |
New Vulcan resident (STID) USS Enterprise-A (TVH, TFF, TUC) USS Enterprise (TC, TOS, TAS, TMP, ST09, STID, STB, DSC) Instructor (ST09) |
Federation Ambassador (TNG, ST09, STID) First Officer (TC, TOS, TAS, Movies) Science Officer (TC, TOS, TAS, ST09, STID, STB, DSC) |
Vulcan/Human |
| Zachary Quinto | ||||||
| Ethan Peck | ||||||
| Paul Stamets | Anthony Rapp | Season 1-3 (DSC) | Lt. Commander (S2) Lieutenant (S1) |
USS Discovery | Science Officer | Human |
| Lon Suder | Brad Dourif | Seasons 2–3 (VOY) | Crewman (provisional) | USS Voyager | Engineering Officer Maquis (previous) |
Betazoid |
| Hikaru Sulu | George Takei | Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, WOK, SFS, TVH, TFF, TUC, ST09, STID, STB) Season 3 (VOY) |
Captain (TUC) Commander (WOK, SFS, TVH, TFF) Lt. Commander (TMP) Lieutenant (TOS, TAS, ST09, STID, STB) |
USS Excelsior (TUC) USS Enterprise-A (TVH, TFF, TUC) USS Enterprise (TOS, TAS, TMP, WOK, SFS, ST09, STID, STB) |
Commanding Officer (TUC) Helmsman (TOS, TAS, TMP, WOK, SFS, TVH, TFF, ST09, STID, STB) |
Human |
| John Cho | ||||||
| Enabran Tain | Paul Dooley | Seasons 2–3,5 (DS9) | None | Cardassia resident | Leader of Obsidian Order | Cardassian |
| Sylvia Tilly | Mary Wiseman | Season 1–3 (DSC) Season 1 (ST) |
Ensign (S2) Cadet (S1) |
USS Discovery | Engineering Officer (S2) Starfleet Cadet (S1) |
Human |
| Tomalak | Andreas Katsulas | Seasons 3–4,7 (TNG) | Commander, Romulan Empire | IRW Terix | Commanding Officer | Romulan |
| Tora Ziyal | Melanie Smith | Seasons 4–6 (DS9) | Civilian | Deep Space 9 resident | Artist | Bajoran/Cardassian |
| Cyia Batten | ||||||
| B'Elanna Torres | Roxann Dawson | Seasons 1–7 (VOY) | Lieutenant, JG (provisional) | USS Voyager | Chief Engineer (S1-7) Maquis (S1) |
Klingon/Human |
| T'Pol | Jolene Blalock | Seasons 1–4 (ENT) | Commander (S4) SubCommander (S1-4) |
Enterprise NX-01 | First Officer Science Officer |
Vulcan |
| The Traveler | Eric Menyuk | Seasons 1,4,7 (TNG) | Civilian | Tau Alpha C resident | Unknown | |
| Deanna Troi | Marina Sirtis | Seasons 1–7 (TNG) Movies (GEN, FCT, INS, NEM) Seasons 6–7 (VOY) Season 4 (ENT) Seasons 1,3 (PIC) Season 1 (LOW) |
Commander (TNG S7, VOY, Movies) Lt. Commander (TNG S1-7) |
USS Titan (NEM) USS Enterprise-E (FCT, INS, NEM) USS Enterprise-D (TNG S1-7, GEN) |
Diplomatic Officer (NEM) Counselor (TNG S1-7, Movies) |
Betazoid/Human |
| Lwaxana Troi | Majel Barrett | Seasons 1–5,7 (TNG) Seasons 1,3–4 (DS9) |
Ambassador | Betazed resident | Federation Ambassador | Betazoid |
| Trip Tucker | Connor Trinneer | Seasons 1–4 (ENT) | Commander | Enterprise NX-01 | Chief Engineer | Human |
| Tuvok | Tim Russ | Seasons 1–7 (VOY) | Lt. Commander (S4-7) Lieutenant (S1-4) |
USS Voyager | Chief of Security | Vulcan |
| Ash Tyler/ |
Shazad Latif | Seasons 1–2 (DSC) | Lieutenant (S1) | USS Discovery | Chief Security Officer (S1) | Human/Klingon |
| José Tyler | Peter Duryea | "The Cage" | Lieutenant | USS Enterprise | Helmsman | Human |
| Nyota Uhura | Nichelle Nichols | Seasons 1–3 (TOS) Seasons 1–2 (TAS) Movies (TMP, WOK, SFS, TVH, TFF, TUC) Season 5 (DS9) |
Commander (WOK, SFS, TVH, TFF, TUC) Lt. Commander (TMP) Lieutenant (TOS, TAS, ST09, STID, STB) |
USS Enterprise-A (TVH, TFF, TUC) USS Enterprise (TOS, TAS, TMP, WOK, SFS, ST09, STID, STB) |
Communications Officer | Human |
| Zoe Saldana | ST09, STID, STB | |||||
| Celia Rose Gooding | SNW Seasons 1-2 | |||||
| Una ('Number One') | Majel Barrett | "The Cage" Season 2 (DSC) Seasons 1-2 (SNW) |
Lt. Commander | USS Enterprise | First Officer | Human |
| Rebecca Romijn | ||||||
| Vash | Jennifer Hetrick | Seasons 3–4 (TNG) Season 1 (DS9) |
Civilian | Earth resident | Archeologist | Human |
| Vorik | Alexander Enberg | Seasons 3–5, 7 (VOY) | Ensign | USS Voyager | Engineering Officer | Vulcan |
| Weyoun | Jeffrey Combs | Seasons 4–7 (DS9) | None | Cardassia Prime | Dominion Leader | Vorta |
| Naomi Wildman | Scarlett Pomers | Seasons 2–7 (VOY) | Civilian | USS Voyager resident | Captain's Assistant (unofficial) | Ktarian/Human |
| Samantha Wildman | Nancy Hower | Seasons 2–6 (VOY) | Ensign | USS Voyager | Science Officer | Human |
| Winn Adami | Louise Fletcher | Seasons 1–3, 5–7 (DS9) | Kai (S3-7) Vedek (S1-2) |
Bajor resident | Bajoran Religious Leader | Bajoran |
| Worf | Michael Dorn | Seasons 1–7 (TNG) Movies (GEN, FCT, INS, NEM) Seasons 4–7 (DS9) Season 3 (PIC) |
Lt. Commander (DS9, Movies) Ambassador (DS9 S7) Lieutenant (TNG S3-7) Lieutenant, JG (TNG S1-2) |
USS Enterprise-E (NEM) Qo'noS (DS9 S7) Deep Space 9 (DS9 S4-7) USS Enterprise-D (S1-7, GEN) |
Strategic Operations Officer (DS9 S4-7, Movies) Ambassador (DS9 S7) Chief Security Officer (TNG S2-7) Helmsman (TNG S1) |
Klingon |
| Tasha Yar | Denise Crosby | Seasons 1,3,7 (TNG) | Lieutenant | USS Enterprise-D | Chief Security Officer | Human |
| Kasidy Yates | Penny Johnson Jerald | Seasons 3–7 (DS9) | Captain | SS Xhosa Deep Space 9 resident |
Freighter Captain | Human |
| Zek | Wallace Shawn | Seasons 1–3,5–7 (DS9) | Grand Nagus | Ferenginar resident | Leader of Ferengi Economics | Ferengi |
| Zhaban | Jamie McShane | Season 1 (PIC) | Civilian | Earth resident | Butler | Romulan |
|
Main article: List of Star Trek: The Original Series cast members |
|
Main article: List of Star Trek: The Next Generation cast members |
|
Main article: List of Star Trek: Deep Space Nine cast members |
|
Main article: List of Star Trek: Voyager cast members |
|
Main article: List of Star Trek: Enterprise cast members |
|
Main article: List of Star Trek: Discovery characters |
| Actor | Character | Seasons | ||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| Main cast | ||||||
| Sonequa Martin-Green | Michael Burnham | Main | ||||
| Doug Jones | Saru | Main | ||||
| Shazad Latif | Voq | Recurring[i] | ||||
| Ash Tyler | Main | |||||
| Anthony Rapp | Paul Stamets | Main | ||||
| Mary Wiseman | Sylvia Tilly | Main | Main[j] | Main | ||
| Jason Isaacs | Gabriel Lorca | Main | ||||
| Wilson Cruz | Hugh Culber | Recurring | Main[j] | |||
| Anson Mount | Christopher Pike | Main | ||||
| Rachael Ancheril | Nhan | Recurring | Main[j] | Guest | TBA | |
| David Ajala | Cleveland "Book" Booker | Main[j] | ||||
| Tig Notaro | Jett Reno | Recurring | Main[j] | |||
| Blu del Barrio | Adira Tal | Recurring | Main[j] | |||
| Callum Keith Rennie | Rayner | Main | ||||
| Recurring cast | ||||||
| Michelle Yeoh | Philippa Georgiou | Recurring[k] | ||||
| Emily Coutts | Keyla Detmer | Recurring | ||||
| Oyin Oladejo | Joann Owosekun | Recurring | ||||
| Patrick Kwok-Choon | Gen Rhys | Recurring | ||||
| Ronnie Rowe Jr. | R.A. Bryce | Recurring | ||||
| Mary Chieffo | L'Rell | Recurring | Guest | |||
| James Frain | Sarek | Recurring | ||||
| Jayne Brook | Katrina Cornwell | Recurring | ||||
| Mia Kirshner | Amanda Grayson | Guest | Recurring | |||
| Kenneth Mitchell | Kol | Recurring | ||||
| Aurellio | Guest | |||||
| Rainn Wilson | Harry Mudd | Recurring | ||||
| Rekha Sharma | Ellen Landry | Recurring | Guest | |||
| Raven Dauda | Tracy Pollard | Guest | Recurring | Guest | ||
| Sara Mitich | Airiam | Recurring | ||||
| Hannah Cheesman | Recurring | Guest | ||||
| Sara Mitich | Nilsson | Guest | Recurring | |||
| Ethan Peck | Spock | Recurring | Archive | |||
| David Benjamin Tomlinson | Linus | Recurring | ||||
| Rebecca Romijn | Number One | Recurring | ||||
| Alan van Sprang | Leland | Recurring | ||||
| Sonja Sohn | Gabrielle Burnham | Recurring | Guest | |||
| Oded Fehr | Charles Vance | Recurring | ||||
| Ian Alexander | Gray Tal | Recurring | ||||
| David Cronenberg | Kovich | Recurring | ||||
| Annabelle Wallis (voice) | Zora | Recurring | ||||
| Durban and Leeu | Grudge | Recurring | ||||
| Vanessa Jackson | Audrey Willa | Recurring | Guest | |||
| Noah Averbach-Katz | Ryn | Recurring | ||||
| Janet Kidder | Osyraa | Recurring | ||||
| Tara Rosling | T'Rina | Guest | Recurring | |||
| Chelah Horsdal | Laira Rillak | Recurring | ||||
| Shawn Doyle | Ruon Tarka | Recurring | ||||
|
Main article: List of Star Trek: Picard characters |
| Actor | Character | Seasons | ||
|---|---|---|---|---|
| 1 | 2 | 3 | ||
| Main cast | ||||
| Patrick Stewart | Jean-Luc Picard | Main | ||
| Alison Pill | Agnes Jurati / Borg Queen | Main | ||
| Isa Briones | Soji Asha | Main | ||
| Dahj Asha | Main | |||
| Sutra | Main | |||
| Kore Soong | Main | |||
| Harry Treadaway | Narek | Main | ||
| Michelle Hurd | Raffi Musiker | Main | ||
| Santiago Cabrera | Chris Rios | Main | ||
| Evan Evagora | Elnor | Main | ||
| Jeri Ryan | Seven of Nine | Recurring[a] | Main | |
| Orla Brady | Laris | Recurring | Main | Guest |
| Tallinn | Main | |||
| Brent Spiner | Data | Special guest | Recurring | |
| Altan Inigo Soong | Special guest | Special guest | ||
| Adam Soong | Main | |||
| Lore | Recurring | |||
| Ed Speleers | Jack Crusher | Main | ||
| Recurring cast | ||||
| Jonathan Del Arco | Hugh | Recurring[b] | ||
| Jamie McShane | Zhaban | Recurring | ||
| Tamlyn Tomita | Commodore Oh | Recurring | ||
| Peyton List | Narissa | Recurring | ||
| Rebecca Wisocky | Ramdha | Recurring | ||
| Annie Wersching | Borg Queen | Recurring | ||
| John de Lancie | Q | Recurring | Guest | |
| Whoopi Goldberg | Guinan | Special guest | ||
| Ito Aghayere | Recurring | |||
| Penelope Mitchell | Renée Picard | Recurring | ||
| Sol Rodríguez | Dr. Teresa Ramirez | Recurring | ||
| Jonathan Frakes | William Riker | Special guest | Recurring | |
| Marina Sirtis | Deanna Troi | Guest[c] | Recurring | |
| Gates McFadden | Beverly Crusher | Recurring | ||
| Todd Stashwick | Captain Liam Shaw | Recurring | ||
| Ashlei Sharpe Chestnut | Sidney La Forge | Recurring | ||
| Michael Dorn | Worf | Recurring | ||
| Amanda Plummer | Vadic | Recurring | ||
| LeVar Burton | Geordi La Forge | Recurring | ||
| Mica Burton | Alandra La Forge | Recurring | ||
| Special guests | ||||
| Wil Wheaton | Wesley Crusher | Guest | ||
| Thomas Dekker | Titus Rikka | Guest | ||
| Daniel Davis | Professor James Moriarty | Guest | ||
| Michelle Forbes | Commander Ro Laren | Special guest | ||
| Tim Russ | Tuvok | Special guest | ||
| Elizabeth Dennehy | Fleet Admiral Elizabeth Shelby | Special guest | ||
| Alice Krige | Borg Queen | Special guest | ||
|
Main article: List of Star Trek: Lower Decks characters |
|
Main article: Star Trek: Prodigy |
| Actor | Character | Seasons |
|---|---|---|
| 1 | ||
| Main Cast | ||
| Brett Gray | Dal | Main |
| Ella Purnell | Gwyndala | Main |
| Jason Mantzoukas | Jankom Pog | Main |
| Angus Imrie | Zero | Main |
| Rylee Alazraqui | Rok-Tahk | Main |
| Dee Bradley Baker | Murf | Main |
| Jimmi Simpson | Drednok | Main |
| John Noble | The Diviner | Main |
| Kate Mulgrew | Kathryn Janeway | Main |
| Recurring Cast | ||
| Bonnie Gordon | The Ship's Computer | Recurring |
| Robert Beltran | Chakotay | Recurring |
| Jameela Jamil | Asencia | Recurring |
| Daveed Diggs | Tysess | Recurring |
| Jason Alexander | Noum | Recurring |
| Billy Campbell | Thadiun Okona | Recurring |
| Ronny Cox | Edward Jellico | Recurring |
|
Main article: List of Star Trek: Strange New Worlds characters |
| Actor | Character | Seasons | |
|---|---|---|---|
| 1 | 2 | ||
| Main cast | |||
| Anson Mount | Christopher "Chris" Pike | Main | |
| Ethan Peck | Spock | Main | |
| Jess Bush | Christine Chapel | Main | |
| Christina Chong | La'an Noonien-Singh | Main | |
| Celia Rose Gooding | Nyota Uhura | Main | |
| Melissa Navia | Erica Ortegas | Main | |
| Babs Olusanmokun | Joseph M'Benga | Main | |
| Bruce Horak | Hemmer | Main | Guest |
| Rebecca Romijn | Una Chin-Riley / Number One | Main | |
| Recurring cast | |||
| Dan Jeannotte | Sam Kirk | Recurring | |
| Rong Fu | Jenna Mitchell | Recurring | |
| Gia Sandhu | T'Pring | Recurring | Guest |
| Adrian Holmes | Robert April | Guest | Recurring |
| Melanie Scrofano | Marie Batel | Guest | Recurring |
| Paul Wesley | James T. Kirk | Special guest | Recurring |
| Carol Kane | Pelia | Recurring | |
| Special guests and legacy characters | |||
| Matthew Wolf | Montgomery Scott | Voice | |
| Martin Quinn | Guest | ||
| Mia Kirshner | Amanda Grayson | Guest | |
| Tawny Newsome | Beckett Mariner | Special guest | |
| Jack Quaid | Brad Boimler | Special guest | |
| Noël Wells | D'Vana Tendi | Special guest | |
| Eugene Cordero | Sam Rutherford | Special guest | |
| Jerry O'Connell | Jack Ransom | Special guest | |
