| Character | Actor(s) | Appearances | Rank | Posting | Position | Species |
|---|
| Airiam | Sara Mitish | Seasons 1-2 (DSC) | Lt. Commander | USS Discovery | Science Officer | Augment |
| Jonathan Archer | Scott Bakula | Seasons 1-4 (ENT)| Captain | Enterprise NX-01 | Commanding Officer | Human | |
| 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 | |
| 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 |
| Boothby | Ray Walston | Season 5 (TNG)
Season 5 (VOY) | Civilian | Starfleet Academy | Groundskeeper | Human |
| The Borg Queen | Susanna Thompson | Seasons 5-7 (VOY)
Movies (FCT) | None | Borg Collective | Leader of Borg Collective | Borg |
| Alice Krige |
| 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 1-2 (DSC) | Lieutenant, JG | USS Discovery | Communications Officer | Human |
| Michael Burnham | Sonequa Martin-Green | Seasons 1-2 (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 (ST:I,IV) | Commander (ST:I-IV)
Crewman (TOS, TAS) | Starfleet Command (ST:IV)
USS Enterprise (TOS, TAS, ST:I) | Starfleet Command Officer (ST:IV)
Medical Officer (ST:I)
Nurse (TOS, TAS) | Human |
| Pavel Chekov | Walter Koenig | Seasons 2-3 (TOS)
Movies (ST:I-VI,GEN,Reboot) | Commander (ST:II-VI,GEN)
Lieutenant (ST:I)
Ensign (TOS,Reboot)USS Enterprise-A (ST:IV-VI)
USS Reliant (ST:II)
USS Enterprise (TOS,ST:I,III,Reboot) | Chief Security Officer (ST:III-VI)
First Officer (ST:II)
Weapons Officer (ST:I)
Navigator (TOS,Reboot) | Human | |
| Anton Yelchin |
| Chell | Derek McGrath | Seasons 1,7 (VOY)| Crewman (provisional) | USS Voyager | Engineering Officer
Maquis (previous) | Bolian | |
| J. M. Colt | Laurel Goodwin | "The Cage" | Yeoman | USS Enterprise | Yeoman | Human |
| Katrina Cornwell | Jayne Brook | Season 1 (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) | Commander | USS Enterprise-E (FCT,INS,NEM)
USS Enterprise-D (S1-7,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)
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 1-2 (DSC) | Lt. Commander (S1) | USS Discovery | Medical Officer (S1) | Human |
| 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) | Lt. Commander | USS Enterprise-E (FCT,INS,NEM)
USS Enterprise-D (S1-7,GEN) | Chief Operations Officer | 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 1-2 (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 | |
| 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 | Season 1 (DSC) | Captain | USS Shenzhou | Commanding Officer | Human |
| Sonya Gomez | Lycia Naff | Season 2 (TNG)| 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)
Seasons 1 (TAS)
Movies (ST:IV-V,ST09)
Season 1 (DSC) | Civilian | Vulcan Resident | | Human |
| Winona Ryder |
| Mia Kirshner |
| Guinan | Whoopi Goldberg | Seasons 2-6 (TNG)
Movies (GEN,NEM) | 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 of Borg | Jonathan Del Arco | Seasons 5-7 (TNG)| None | Borg Drone | Borg | |
| Icheb | Manu Intiraymi | Seasons 6-7 (VOY)| Civilian | USS Voyager Resident | Astrometrics | Brunali | |
| 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 | |
| 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 | |
| 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 | |
| James T. Kirk | William Shatner | Seasons 1-3 (TOS)
Seasons 1-2 (TAS)
Movies (ST:I-VI,GEN,Reboot) | Captain (TOS,TAS,ST:V-VI,GEN,STID,STB)
Rear Admiral (ST:I-IV)
Cadet (ST09)USS Enterprise-A (ST:IV-VI)
USS Enterprise (TOS,TAS,ST:I-III,Reboot) | Commanding Officer (TOS,TAS,ST:I-VI,STID,STB)
First Officer (ST09)Human | | |
| Chris Pine |
| 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)
Seasons 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 |
| Leeta | Chase Masterson | Seasons 3-7 (DS9)| Civilian | Deep Space 9 Resident | Dabo Girl | Bajoran | |
| Robin Lefler | Ashley Judd | Season 5 (TNG)| Ensign | USS Enterprise-D | Engineering Officer | Human | |
| Li Nalas | Richard Beymer | Season 2 (DS9)| Navarch | Deep Space 9 | Liaison Officer | Bajoran | |
| 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 (ST:II-III,STID)Civilian (ST:II-III)
Lieutenant (STID)Project Genesis (ST:II-III)
USS Enterprise (STID)Biologist | Human | | | |
| Alice Eve |
| 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 (ST:I-VI,Reboot)
Season 1 (TNG) | Admiral (TNG)
Commander (ST:I-VI)
Lt. Commander (TOS,TAS,Reboot)USS Enterprise-A (ST:IV-VI)
USS Enterprise (TOS,TAS,ST:I-III,Reboot) | 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 |
| 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 | |
| Susan Nicoletti | Christine Delgado | Seasons 1-4,7 (VOY)| Lieutenant, JG | USS Voyager | Engineering 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 | |
| Number One | Majel Barrett | "The Cage"
Season 2 (DSC) | Lt. Commander | USS Enterprise | First Officer | Human |
| Rebecca Romijn |
| 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 |
| Opaka Sulan | Camille Saviola | Seasons 1-2,4 (DS9)| Kai | Bajor Resident | Bajoran Religious Leader (S1) | Bajoran | |
| Joann Owosekun | Oyin Oladejo | Seasons 1-2 (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) | Captain | USS Enterprise-E (FCT,INS,NEM)
USS Enterprise-D (S1-7,GEN) | Commanding Officer | Human |
| Christopher Pike | Jeffrey Hunter | "The Cage"
Season 1 (TOS)
Movies (ST09,STID)
Season 2 (DSC)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 |
| Anson Mount |
| 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) | 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 (ST:I,IV,VI)
Season 3 (VOY) | Commander (ST:VI)
Chief Petty Officer (ST:IV)
Crewman (ST:I)
Yeoman (TOS) | USS Excelsior (ST:VI)
Starfleet Command (ST:IV)
USS Enterprise (TOS, ST:I) | First Officer (ST:VI)
Starfleet Command Officer (ST:IV)
Transporter Chief (ST:I)
Yeoman (TOS) | Human |
| Rebi | Cody Wetherill | Seasons 6-7 (VOY)| Civilian | USS Voyager Passenger | Wysanti | |
| Malcolm Reed | Dominic Keating | Seasons 1-4 (ENT)| Lieutenant | Enterprise NX-01 | Tactical Officer | Human | |
| Jet Reno | Tig Notaro | Season 2 (DSC) | Lt. Commander | USS Hiawatha | Chief Engineer | Human |
| Rhys | Patrick Kwok-Choon | Seasons 1-2 (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) | Captain (NEM)
Commander (S1-7,Movies) | USS Titan (NEM)
USS Enterprise-E (FCT,INS,NEM)
USS Enterprise-D (S1-7,GEN) | Commanding Officer (NEM)
First Officer (S1-7,Movies) | Human |
| 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 (ST:II-IV) | Lieutenant, JG | USS Grissom (ST:III-IV)
USS Enterprise (ST:II) | Science Officer (ST:III-IV)
Navigator (ST:II) | Vulcan/Romulan |
| Robin Curtis |
| Sarek | Mark Lenard | Season 2 (TOS)
Seasons 1 (TAS)
Movies (ST:I,III,IV,VI,ST09)
Seasons 3,5 (TNG)
Seasons 1-2 (DSC) | Ambassador | Vulcan Resident | Federation Ambassador | Vulcan |
| Ben Cross |
| James Frain |
| Saru | Doug Jones | Seasons 1-2 (DSC)
Season 1 (ST) | Commander | USS Discovery (S1-2)
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)| Civilian | USS Voyager | Astrometrics | Human | |
| Montgomery Scott | James Doohan | Seasons 1-3 (TOS)
Seasons 1-2 (TAS)
Movies (ST:I-VI,GEN,Reboot)
Season 6 (TNG) | Captain (ST:III-VI,GEN,TNG)
Commander (ST:I-II)
Lt. Commander (TOS,TAS,Reboot)USS Enterprise-A (ST:IV-VI)
USS Enterprise (TOS,TAS,ST:I-III,Reboot) | 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 (ST:I-VI,Reboot)
Season 5 (TNG)
Season 2 (DSC) | Ambassador (TNG,ST09,STID)
Captain (ST:II-VI)
Commander (TC,TOS,TAS,ST:I,Reboot,DSC)New Vulcan Resident (STID)
USS Enterprise-A (ST:IV-VI)
USS Enterprise (TC,TOS,TAS,ST:I-III,Reboot,DSC)
Instructor (ST09)Federation Ambassador (TNG,ST09,STID)
First Officer (TC,TOS,TAS,Movies)
Science Officer (TC,TOS,TAS,Reboot,DSC) | Vulcan/Human | | |
| Zachary Quinto |
| Ethan Peck |
| Paul Stamets | Anthony Rapp | Season 1-2 (DSC) | Lt. Commander (S2)
Lieutenant (S1) | USS Discovery | Chief Engineer | 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 (ST:I-VI,Reboot)
Season 3 (VOY) | Captain (ST:VI)
Commander (ST:II-V)
Lt. Commander (ST:I)
Lieutenant (TOS,TAS,Reboot)USS Excelsior (ST:VI)
USS Enterprise-A (ST:IV-VI)
USS Enterprise (TOS, TAS, ST:I-III,Reboot) | Commanding Officer (ST:VI)
Helmsman (TOS,TAS,ST:I-V,Reboot) | Human | |
| John Cho |
| Enabran Tain | Paul Dooley | Seasons 2-3,5 (DS9)| None | Cardassia Resident | Leader of Obsidian Order | Cardassian | |
| Tal Celes | Zoe McLellan | Season 6 (VOY)| Crewman | USS Voyager | Operations Officer | Bajoran | |
| Sylvia Tilly | Mary Wiseman | Season 1-2 (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) | Commander (S7,VOY,Movies)
Lt. Commander (S1-7) | USS Titan (NEM)
USS Enterprise-E (FCT,INS,NEM)
USS Enterprise-D (S1-7,GEN) | Diplomatic Officer (NEM)
Counselor (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 |
| Charles 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 / Voq | 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 (ST:I-VI,Reboot) | Commander (ST:II-VI)
Lt. Commander (ST:I)
Lieutenant (TOS,TAS,Reboot)USS Enterprise-A (ST:IV-VI)
USS Enterprise (TOS, TAS, ST:I-III,Reboot) | Communications Officer | Human | |
| Zoe Saldana |
| 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) | 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 | |
|