- Leonard Nimoy
- Â Mr. Spock / ... 80 episodes, 1966-1969
- William Shatner
- Â Captain James T. Kirk / ... 79 episodes, 1966-1969
- DeForest Kelley
- Â Dr. McCoy 76 episodes, 1966-1969
- Nichelle Nichols
- Â Uhura 67 episodes, 1966-1969
- James Doohan
- Â Scott / ... 65 episodes, 1966-1969
- Eddie Paskey
- Â Lieutenant Leslie / ... 2 episodes, 1966-1968
- George Takei
- Â Sulu 51 episodes, 1966-1969
- Walter Koenig
- Â Chekov 36 episodes, 1967-1969
- Majel Barrett
- Â Nurse Chapel / ... 28 episodes, 1966-1969
- John Winston
- Â Lt. Kyle / ... 11 episodes, 1967-1969
- Paul Baxley
- Â Ensign Freeman / ... 4 episodes, 1966-1968
- Jay D. Jones
- Â Engineer / ... 2 episodes, 1967-1969
- David L. Ross
- Â Galloway / ... 9 episodes, 1966-1969
- Grace Lee Whitney
- Â Yeoman Rand / ... 8 episodes, 1966
- Sean Morgan
- Â Brenner / ... 3 episodes, 1966-1968
- Bart La Rue
- Â Announcer / ... 3 episodes, 1967-1969
- Barbara Babcock
- Â Beta 5 Computer / ... 3 episodes, 1967-1969
- Dick Geary
- Â Security Guard / ... 1 episode, 1968-1969
- Ed McCready
- Â Barber / ... 5 episodes, 1966-1968
- John Arndt
- Â Ingenieur Fields / ... 1 episode, 1966-1967
- Louie Elias
- Â 1st Technician / ... 1 episode, 1966-1969
- Sean Kenney
- Â Christopher Pike / ... 4 episodes, 1966-1967
- Vic Perrin
- Â Metron / ... 2 episodes, 1966-1967
- Vince Deadrick Sr.
- Â Engineer / ... 1 episode, 1966-1968
- Janos Prohaska
- Â Anthropoid Ape / ... 1 episode, 1966-1969
- Bob Bralver
- Â Berserk Engineer / ... 1 episode, 1967-1968
- Grant Woods
- Â Kelowitz 3 episodes, 1967
- Michael Barrier
- Â DeSalle 3 episodes, 1967
- Barbara Baldavin
- Â Angela / ... 3 episodes, 1966-1969
- Jim Goodwin
- Â Farrell 3 episodes, 1966
- Hagan Beggs
- Â Lt. Hansen / ... 3 episodes, 1966-1967
- Malachi Throne
-  Commodore José Mendez / ... 2 episodes, 1966
- Jon Lormer
- Â Dr. Theodore Haskins / ... 2 episodes, 1966-1968
- Naomi Newman
- Â Indian Woman / ... 2 episodes, 1968-1969
- Jerry Catron
- Â Montgomery / ... 2 episodes, 1967
- Ted Cassidy
- Â Balok's Puppet / ... 1 episode, 1966-1967
- Walt Davis
- Â Klingon Soldier / ... 1 episode, 1966-1967
- Anthony Larry Paul
- Â Berkeley / ... 1 episode, 1966
- George Sawaya
- Â Chief Humboldt / ... 1 episode, 1966-1968
- John Lindesmith
- Â Engineer / ... 1 episode, 1966-1968
- Pete Kellett
- Â Kirk's Henchman / ... 1 episode, 1967-1968
- Roger C. Carmel
- Â Harry Mudd 2 episodes, 1966-1967
- Mark Lenard
- Â Romulan Commander / ... 2 episodes, 1966-1967
- William Campbell
- Â Koloth / ... 2 episodes, 1967
- Diana Muldaur
- Â Ann Mulhall / ... 2 episodes, 1968
- Morgan Woodward
- Â Captain Tracey / ... 2 episodes, 1966-1968
- Skip Homeier
- Â Melakon / ... 2 episodes, 1968-1969
- Lawrence Montaigne
- Â Decius / ... 2 episodes, 1966-1967
- Ian Wolfe
- Â Mr. Atoz / ... 2 episodes, 1968-1969
- Stewart Moss
- Â Hanar / ... 2 episodes, 1966-1968
- Charles Macaulay
- Â Jaris / ... 2 episodes, 1967
- Craig Huxley
- Â Peter / ... 2 episodes, 1967-1968
- Jerry Ayres
- Â O'Herlihy / ... 2 episodes, 1967
- Makee K. Blaisdell
- Â Singh / ... 2 episodes, 1967
- Bruce Hyde
- Â Kevin Riley / ... 2 episodes, 1966
- Richard Derr
- Â Admiral Fitzgerald / ... 2 episodes, 1967-1969
- John Harmon
- Â Rodent / ... 2 episodes, 1967-1968
- Elizabeth Rogers
- Â Lt. Palmer 2 episodes, 1967-1969
- Morgan Farley
- Â Hacom / ... 2 episodes, 1967-1968
- Garland Thompson
- Â Crewman II / ... 2 episodes, 1966
- Richard Compton
- Â Technical Officer / ... 2 episodes, 1967-1968
- Barry Russo
- Â Giotto / ... 2 episodes, 1967-1968
- Mark Tobin
- Â Joaquin / ... 2 episodes, 1967-1968
- Bruce Mars
- Â Finnegan / ... 2 episodes, 1966-1968
- Byron Morrow
- Â Admiral Komack / ... 2 episodes, 1967-1968
- Booker Bradshaw
- Â Dr. M'Benga 2 episodes, 1968-1969
- Gene Dynarski
- Â Ben / ... 2 episodes, 1966-1969
- Kirk Raymond
- Â Cloud Guard #1 / ... 2 episodes, 1967-1969
- John Bellah
- Â Crewman I / ... 2 episodes, 1966
- Michael Zaslow
- Â Darnell / ... 2 episodes, 1966-1967
- Phyllis Douglas
- Â Girl #2 / ... 2 episodes, 1967-1969
- Garth Pillsbury
- Â Prisoner / ... 2 episodes, 1967-1969
- Victor Brandt
- Â Tongo Rad / ... 2 episodes, 1968-1969
- Mike Howden
- Â Lt. Rowe / ... 2 episodes, 1967-1968
- Abraham Sofaer
- Â Melkotian / ... 2 episodes, 1966-1968
- Lev Mailer
- Â Bilar / ... 2 episodes, 1967-1968
- Ed Madden
- Â Enterprise Geologist / ... 1 episode, 1966
- Andrea Dromm
- Â Yeoman Smith 1 episode, 1966
- Hal Baylor
- Â Guard / ... 1 episode, 1967-1968
- Budd Albright
- Â Barnhart / ... 1 episode, 1966
- Albert Cavens
- Â Klingon Crewman / ... 1 episode, 1968-1969
- Jimmy Fields
- Â Cloud Guard #2 / ... 1 episode, 1968-1969
- William Frederick Knight
- Â Amorous Crewman / ... 1 episode, 1966-1967
- Carol Daniels
- Â Bridge Crewmember / ... 1 episode, 1966-1969
- Dick Crockett
- Â Andorian Thrall / ... 1 episode, 1967-1968
- Bob Herron
- Â Kahless / ... 1 episode, 1966-1969
- Laura Wood
- Â Mrs. Johnson / ... 1 episode, 1966-1967
- Jeffrey Hunter
- Â Captain Christopher Pike 3 episodes, 1966
- Susan Oliver
- Â Vina 3 episodes, 1966
- Kim Darby
- Â Miri 1 episode, 1966
- Gary Lockwood
- Â Lt. Cmdr. Gary Mitchell 1 episode, 1966
- Robert Walker Jr.
- Â Charlie Evans 1 episode, 1966
- James Gregory
- Â Dr. Tristan Adams 1 episode, 1966
- Emily Banks
- Â Tonia Barrows 1 episode, 1966
- Jeanne Bal
- Â Nancy Crater 1 episode, 1966
- Michael Strong
- Â Dr. Roger Korby 1 episode, 1966
- Anthony D. Call
- Â Dave Bailey 1 episode, 1966
- Arnold Moss
- Â Karidian 1 episode, 1966
- Ricardo Montalban
- Â Khan 1 episode, 1967
- Joan Collins
- Â Sister Edith Keeler 1 episode, 1967
- Jill Ireland
- Â Leila Kalomi 1 episode, 1967
- Harry Townes
- Â Reger 1 episode, 1967
- Don Marshall
- Â Boma 1 episode, 1967
- David Opatoshu
- Â Anan 7 1 episode, 1967
- Robert Brown
- Â Lazarus 1 episode, 1967
- Roger Perry
- Â Major Christopher 1 episode, 1967
- Percy Rodrigues
- Â Portmaster Stone 1 episode, 1967
- John Abbott
- Â Ayelborne 1 episode, 1967
- Clint Howard
- Â Balok 1 episode, 1966
- Sherry Jackson
- Â Andrea 1 episode, 1966
- Sally Kellerman
- Â Dr. Elizabeth Dehner 1 episode, 1966
- Michael J. Pollard
- Â Jahn 1 episode, 1966
- Barbara Anderson
- Â Lenore 1 episode, 1966
- Karen Steele
- Â Eve McHuron 1 episode, 1966
- Alfred Ryder
- Â Prof. Robert Crater 1 episode, 1966
- Paul Comi
- Â Stiles 1 episode, 1966
- Oliver McGowan
- Â Caretaker 1 episode, 1966
- Julie Newmar
- Â Eleen 1 episode, 1967
- Elisha Cook Jr.
- Â Cogley 1 episode, 1967
- William Windom
- Â Commodore Decker 1 episode, 1967
- Michael Forest
- Â Apollo 1 episode, 1967
- BarBara Luna
- Â Marlena 1 episode, 1967
- William Schallert
- Â Nilz Baris 1 episode, 1967
- Glenn Corbett
- Â Zefram Cochrane 1 episode, 1967
- John Fiedler
- Â Hengist 1 episode, 1967
- Madlyn Rhue
- Â Marla 1 episode, 1967
- Antoinette Bower
- Â Sylvia 1 episode, 1967
- Jane Wyatt
- Â Amanda 1 episode, 1967
- Ken Lynch
- Â Vanderberg 1 episode, 1967
- John Colicos
- Â Kor 1 episode, 1967
- Keith Andes
- Â Akuta 1 episode, 1967
- Celia Lovsky
- Â T'Pau 1 episode, 1967
- Torin Thatcher
- Â Marplon 1 episode, 1967
- Charles Drake
- Â Commodore Stocker 1 episode, 1967
- Frank Overton
- Â Elias Sandoval 1 episode, 1967
- Gene Lyons
- Â Ambassador Fox 1 episode, 1967
- Stephen Brooks
- Â Ensign Garrovick 1 episode, 1967
- Joanne Linville
- Â Romulan Commander 1 episode, 1968
- Kathie Browne
- Â Deela 1 episode, 1968
- France Nuyen
- Â Elaan 1 episode, 1968
- Nancy Kovack
- Â Nona 1 episode, 1968
- Marj Dusay
- Â Kara 1 episode, 1968
- Warren Stevens
- Â Rojan 1 episode, 1968
- Michael Ansara
- Â Kang 1 episode, 1968
- Joseph Ruskin
- Â Galt 1 episode, 1968
- William Marshall
- Â Daystrom 1 episode, 1968
- Anthony Caruso
- Â Bela 1 episode, 1968
- Sabrina Scharf
- Â Miramanee 1 episode, 1968
- Robert Lansing
- Â Mister Seven 1 episode, 1968
- Katherine Woodville
- Â Natira 1 episode, 1968
- Kathryn Hays
- Â Gem 1 episode, 1968
- Michael Dunn
- Â Alexander 1 episode, 1968
- Richard Evans
- Â Isak 1 episode, 1968
- William Smithers
- Â Merik 1 episode, 1968
- Ron Soble
- Â Wyatt Earp 1 episode, 1968
- Mariette Hartley
- Â Zarabeth 1 episode, 1969
- Lee Meriwether
- Â Losira 1 episode, 1969
- Sharon Acker
- Â Odona 1 episode, 1969
- Frank Gorshin
- Â Bele 1 episode, 1969
- Lee Bergere
- Â Lincoln 1 episode, 1969
- Jeff Corey
- Â Plasus 1 episode, 1969
- Steve Ihnat
- Â Garth 1 episode, 1969
- James Daly
- Â Flint 1 episode, 1969
- Jan Shutan
- Â Lt. Mira Romaine 1 episode, 1969
- Sandra Smith
- Â Janice Lester 1 episode, 1969
- John Hoyt
- Â Dr. Phillip Boyce 3 episodes, 1966
- Perry Lopez
- Â Rodriguez 1 episode, 1966
- Leslie Parrish
- Â Carolyn 1 episode, 1967
- Elinor Donahue
- Â Nancy Hedford 1 episode, 1967
- Arlene Martel
- Â T'Pring 1 episode, 1967
- Joan Marshall
- Â Areel Shaw 1 episode, 1967
- Celeste Yarnall
- Â Yeoman Martha Landon 1 episode, 1967
- Sarah Marshall
- Â Janet Wallace 1 episode, 1967
- Theodore Marcuse
- Â Korob 1 episode, 1967
- Janet MacLachlan
- Â Charlene Masters 1 episode, 1967
- Tige Andrews
- Â Kras 1 episode, 1967
- Joan Swift
- Â Aurelan 1 episode, 1967
- Hal Lynch
- Â Air Police Sergeant 1 episode, 1967
- Richard Carlyle
- Â Jaeger 1 episode, 1967
- Richard Tatro
- Â Norman 1 episode, 1967
- Teri Garr
- Â Roberta Lincoln 1 episode, 1968
- Barbara Bouchet
- Â Kelinda 1 episode, 1968
- Angelique Pettyjohn
- Â Shahna 1 episode, 1968
- Jay Robinson
- Â Petri 1 episode, 1968
- Vic Tayback
- Â Krako 1 episode, 1968
- Susan Howard
- Â Mara 1 episode, 1968
- Logan Ramsey
- Â Claudius 1 episode, 1968
- Jack Donner
- Â Tal 1 episode, 1968
- Jason Evers
- Â Rael 1 episode, 1968
- Valora Noland
- Â Daras 1 episode, 1968
- Michael Witney
- Â Tyree 1 episode, 1968
- Liam Sullivan
- Â Parmen 1 episode, 1968
- Roy Jenson
- Â Cloud William 1 episode, 1968
- Bonnie Beecher
- Â Sylvia 1 episode, 1968
- Rudy Solari
- Â Salish 1 episode, 1968
- David Frankham
- Â Larry Marvick 1 episode, 1968
- Alan Bergmann
- Â Lal 1 episode, 1968
- James Wellman
- Â Professor Starnes 1 episode, 1968
- Yvonne Craig
- Â Marta 1 episode, 1969
- Diana Ewing
- Â Droxine 1 episode, 1969
- Charles Napier
- Â Adam 1 episode, 1969
- Louise Sorel
- Â Rayna 1 episode, 1969
- Barry Atwater
- Â Surak 1 episode, 1969
- Lou Antonio
- Â Lokai 1 episode, 1969
- Harry Landers
- Â Dr. Coleman 1 episode, 1969
- David Hurst
- Â Hodin 1 episode, 1969
- Marianna Hill
- Â Helen Noel 1 episode, 1966
- Maggie Thrett
- Â Ruth 1 episode, 1966
- Peter Duryea
-  Lt. José Tyler 3 episodes, 1966
- Stanley Adams
- Â Cyrano Jones 1 episode, 1967
- Michael Dante
- Â Maab 1 episode, 1967
- Pilar Seurat
- Â Sybo 1 episode, 1967
- Brioni Farrell
- Â Tula 1 episode, 1967
- Alyce Andrece
- Â Alice #1 through 250 1 episode, 1967
- Brad Weston
- Â Appel 1 episode, 1967
- Maurishka
- Â Yeoman Zahra 1 episode, 1967
- Richard Merrifield
- Â Technician 1 episode, 1967
- Tony Young
- Â Kryton 1 episode, 1968
- Melvin Belli
- Â Gorgan 1 episode, 1968
- Lee Delano
- Â Kalo 1 episode, 1968
- Charlene Polite
- Â Vanna 1 episode, 1969
- Mary Linda Rapelye
- Â Irina 1 episode, 1969
- Arthur Batanides
- Â D'Amato 1 episode, 1969
- Phillip Pine
- Â Col. Green 1 episode, 1969
- Kermit Murdock
- Â The Prosecutor 1 episode, 1969
- Laurel Goodwin
- Â Yeoman J.M. Colt 2 episodes, 1966
- Susan Denberg
- Â Magda 1 episode, 1966
- Lloyd Haynes
- Â Alden 1 episode, 1966
- Keith Taylor
- Â Jahn's Friend 1 episode, 1966
- Charles Stewart
- Â Captain Ramart 1 episode, 1966
- Sid Haig
- Â First Lawgiver 1 episode, 1967
- David Soul
- Â Makora 1 episode, 1967
- Whit Bissell
- Â Lurry 1 episode, 1967
- Peter Brocco
- Â Claymare 1 episode, 1967
- William O'Connell
- Â Thelev 1 episode, 1967
- Biff Elliot
- Â Schmitter 1 episode, 1967
- Rhae Andrece
- Â Alice #251 through 500 1 episode, 1967
- David Brian
- Â John Gill 1 episode, 1968
- William Bramley
- Â Policeman 1 episode, 1968
- Ed Bakey
- Â The First Fop 1 episode, 1969
- William Sargent
- Â Dr. Leighton 1 episode, 1966
- Susanne Wasson
- Â Lethe 1 episode, 1966
- Harry Basch
- Â Brown 1 episode, 1966
- Dallas Mitchell
- Â Tom Nellis 1 episode, 1966
- John Crawford
- Â Commissioner Ferris 1 episode, 1967
- Richard Webb
- Â Finney 1 episode, 1967
- Ed Peck
- Â Col. Fellini 1 episode, 1967
- Miko Mayama
- Â Tamula 1 episode, 1967
- Victor Lundin
- Â Lieutenant 1 episode, 1967
- Arch Whiting
- Â Assistant Engineer 1 episode, 1967
- George Allen
- Â Engineer #1 1 episode, 1967
- Steve Sandor
- Â Lars 1 episode, 1968
- Ned Romero
- Â Krell 1 episode, 1968
- Davis Roberts
- Â Dr. Ozaba 1 episode, 1968
- Rhodes Reason
- Â Flavius 1 episode, 1968
- Irene Kelly
- Â Sirah 1 episode, 1968
- Cindy Lou
- Â Nurse 1 episode, 1968
- Paul Carr
- Â Lt. Lee Kelso 1 episode, 1966
- Natalie Norwick
- Â Martha Leighton 1 episode, 1966
- Bruce Watson
- Â Green 1 episode, 1966
- Don Eitner
- Â Navigator 1 episode, 1966
- Kellie Flanagan
- Â Blonde Girl 1 episode, 1966
- Charles Dierkop
- Â Morla 1 episode, 1967
- Tom Troupe
- Â Lt. Harold 1 episode, 1967
- David Hillary Hughes
- Â Trefayne 1 episode, 1967
- Peter Marko
- Â Gaetano 1 episode, 1967
- Christian Patrick
- Â Transporter Chief 1 episode, 1967
- Jon Cavett
- Â Guard 1 episode, 1967
- Barbara Gates
- Â Crewwoman 1 episode, 1967
- Richard Hale
- Â Goro 1 episode, 1968
- Jason Wingreen
- Â Dr. Linke 1 episode, 1968
- Charles Maxwell
- Â Virgil Earp 1 episode, 1968
- Anna Karen
- Â Woman 1 episode, 1969
- Paul Fix
- Â Doctor Piper 1 episode, 1966
- Pat McNulty
- Â Tina Lawton 1 episode, 1966
- Stephen McEveety
- Â Redheaded Boy 1 episode, 1966
- David Somerville
- Â Larry Matson 1 episode, 1966
- Michael Pataki
- Â Korax 1 episode, 1967
- Cal Bolder
- Â Keel 1 episode, 1967
- John Wheeler
- Â Gav 1 episode, 1967
- Venita Wolf
- Â Teresa 1 episode, 1967
- Joseph Bernard
- Â Tark 1 episode, 1967
- John Copage
- Â Elliott 1 episode, 1967
- Jerry Daniels
- Â Marple 1 episode, 1967
- Win De Lugo
- Â Timothy 1 episode, 1967
- Kathy Ahart
- Â Crew Woman 1 episode, 1967
- Dick Scotter
- Â Painter 1 episode, 1967
- James Farley
- Â Lang 1 episode, 1967
- Meade Martin
- Â Crewman 1 episode, 1967
- Rex Holman
- Â Morgan Earp 1 episode, 1968
- Don Keefer
- Â Cromwell 1 episode, 1968
- Willard Sage
- Â Thann 1 episode, 1968
- Jane Ross
- Â Tamoon 1 episode, 1968
- Erik Holland
- Â Ekor 1 episode, 1968
- Patrick Horgan
- Â Eneg 1 episode, 1968
- James Daris
- Â Creature 1 episode, 1968
- Ted Scott
- Â Eraclitus 1 episode, 1968
- Gary Downey
- Â Tellarite 1 episode, 1969
- Vince Howard
- Â Crewman 1 episode, 1966
- Stephen Mines
- Â Tomlinson 1 episode, 1966
- Karl Bruck
- Â King Duncan 1 episode, 1966
- Marcia Brown
- Â Alice 1 episode, 1966
- Karl Held
- Â Lindstrom 1 episode, 1967
- Tanya Lemani
- Â Kara 1 episode, 1967
- Alice Rawlings
- Â Jame Finney 1 episode, 1967
- Fred Carson
- Â First Denevan 1 episode, 1967
- Carolyne Barry
- Â Metron 1 episode, 1967
- Felix Locher
- Â Mr. Johnson 1 episode, 1967
- Ben Gage
- Â Akaar 1 episode, 1967
- Rees Vaughn
- Â Latimer 1 episode, 1967
- Edwin Reimers
- Â Admiral Fitzpatrick 1 episode, 1967
- Tim Burns
- Â Russ 1 episode, 1967
- James X. Mitchell
- Â Josephs 1 episode, 1967
- Arnold Lessing
- Â Security Guard 1 episode, 1967
- Sheldon Collins
- Â Tough Kid 1 episode, 1968
- Lloyd Kino
- Â Wu 1 episode, 1968
- Sam Gilman
- Â Doc Holliday 1 episode, 1968
- William Wintersole
- Â Abrom 1 episode, 1968
- Robert Fortier
- Â Tomar 1 episode, 1968
- Victoria George
- Â Ensign Jana Haines 1 episode, 1968
- Lincoln Demyan
- Â Sergeant 1 episode, 1968
- Sheila Leighton
- Â Luma 1 episode, 1968
- Geoffrey Binney
- Â Compton 1 episode, 1968
- Derek Partridge
- Â Dionyd 1 episode, 1968
- Keye Luke
- Â Cory 1 episode, 1969
- Ed Long
- Â Midro 1 episode, 1969
- Stan Barrett
- Â The Jailor 1 episode, 1969
- Arell Blanton
- Â Chief Security Guard 1 episode, 1969
- Libby Erwin
- Â Technician 1 episode, 1969
- Brad Forrest
- Â Ensign 1 episode, 1969
- Francine Pyne
- Â Nancy III 1 episode, 1966
- Eli Behar
- Â Therapist 1 episode, 1966
- Marc Grady Adams
- Â Hamlet 1 episode, 1966
- Sebastian Tom
- Â Warrior 1 episode, 1966
- Reggie Nalder
- Â Shras 1 episode, 1967
- Robert Sampson
- Â Sar 6 1 episode, 1967
- Carolyn Nelson
- Â Yeoman Atkins 1 episode, 1967
- Kay Elliot
- Â Stella Mudd 1 episode, 1967
- Mark Dempsey
- Â Air Force Captain 1 episode, 1967
- Nancy Wong
- Â Personnel Officer 1 episode, 1967
- Rhodie Cogan
- Â First Witch 1 episode, 1967
- Mal Friedman
- Â Hendorff 1 episode, 1967
- Pamelyn Ferdin
- Â Mary 1 episode, 1968
- Dyanne Thorne
- Â First Girl 1 episode, 1968
- Morgan Jones
- Â Col. Nesvig 1 episode, 1968
- Charles Seel
- Â Ed 1 episode, 1968
- Lezlie Dalton
- Â Drea 1 episode, 1968
- Gilbert Green
- Â S.S. Major 1 episode, 1968
- Robert Gentile
- Â Technician 1 episode, 1968
- Lee Duncan
- Â Evans 1 episode, 1968
- Arthur Bernard
- Â Apella 1 episode, 1968
- Fred Williamson
- Â Anka 1 episode, 1969
- Johnny Haymer
- Â The Constable 1 episode, 1969
- Kenneth Washington
- Â Watkins 1 episode, 1969
- John Boyer
- Â Guard 1 episode, 1969
- John Megna
- Â Little Boy 1 episode, 1966
- Garry Walberg
- Â Hansen 1 episode, 1966
- Shirley Bonne
- Â Ruth 1 episode, 1966
- Jon Kowal
- Â Herm 1 episode, 1966
- Gail Bonney
- Â Second Witch 1 episode, 1967
- Charlie Brill
- Â Arne Darvin 1 episode, 1967
- Virginia Aldridge
- Â Karen Tracy 1 episode, 1967
- Robert 'Big Buck' Maffei
- Â Creature 1 episode, 1967
- Shari Nims
- Â Sayana 1 episode, 1967
- Bart Conrad
- Â Krasnovsky 1 episode, 1967
- Jim Spencer
- Â Air Policeman 1 episode, 1967
- Mickey Morton
- Â Kloog 1 episode, 1968
- Bill Zuckert
- Â Johnny Behan 1 episode, 1968
- Sharyn Hillyer
- Â Second Girl 1 episode, 1968
- Jack Perkins
- Â Master of Games 1 episode, 1968
- Carl Byrd
- Â Lt. Shea 1 episode, 1968
- Melvin Caesar Belli
- Â Steve 1 episode, 1968
- Frank Atienza
- Â Kohn Villager 1 episode, 1968
- Peter Virgo Jr.
- Â Warrior 1 episode, 1968
- Deborah Downey
- Â Girl #1 1 episode, 1969
- John Warburton
- Â The Centurion 1 episode, 1966
- Seamon Glass
- Â Benton 1 episode, 1966
- Beverly Washburn
- Â Arlene Galway 1 episode, 1967
- Judith McConnell
- Â Yeoman Tankris 1 episode, 1967
- William Meader
- Â Board Officer 1 episode, 1967
- Maryesther Denver
- Â Third Witch 1 episode, 1967
- Sherri Townsend
- Â Crew Woman 1 episode, 1967
- Julie Cobb
- Â Yeoman 1 episode, 1968
- Dick Durock
- Â Guard #1 1 episode, 1968
- Ted Gehring
- Â Second Policeman 1 episode, 1968
- Gordon Coffey
- Â Romulan Soldier 1 episode, 1968
- Mark Robert Brown
- Â Don 1 episode, 1968
- Max Kleven
- Â Maximus 1 episode, 1968
- Buddy Garion
- Â Hood 1 episode, 1968
- Lamont Laird
- Â Indian Boy 1 episode, 1968
- Nathan Jung
- Â Ghengis Khan 1 episode, 1969
- Harv Selsby
- Â Guard 1 episode, 1969
- Julie Parrish
- Â Miss Piper 1 episode, 1966
- Jerry Foxworth
- Â Guard 1 episode, 1966
- Judi Sherven
- Â Nurse 1 episode, 1967
- Reginald Lal Singh
- Â Board Officer 1 episode, 1967
- Brian Tochi
- Â Ray 1 episode, 1968
- Steven Marlo
- Â Zabo 1 episode, 1968
- Lois Jewell
- Â Drusilla 1 episode, 1968
- Charles Beck
- Â Guard #2 1 episode, 1968
- Gary Pillar
- Â Yutan 1 episode, 1968
- Guy Raymond
- Â Trader 1 episode, 1967
- K.L. Smith
- Â Klingon 1 episode, 1968
- Peter Canon
- Â Gestapo Lieutenant 1 episode, 1968
- Chuck Courtney
- Â Davod 1 episode, 1968
- Bill Blackburn
- Â Lieutenant Hadley / ... (uncredited) 68 episodes, 1966-1969
- Frank da Vinci
- Â Lt. Brent / ... (uncredited) 53 episodes, 1966-1969
- Jeannie Malone
- Â Yeoman / ... (uncredited) 37 episodes, 1966-1969
- Roger Holloway
- Â Lt. Lemli / ... (uncredited) 35 episodes, 1967-1969
- Ron Veto
- Â Harrison / ... (uncredited) 20 episodes, 1966-1967
- Frieda Rentie
- Â Enterprise Lieutenant (uncredited) 15 episodes, 1966-1969
- John Blower
- Â Crewman Swenson / ... (uncredited) 7 episodes, 1967-1968
- Bobby Bass
- Â Guard / ... (uncredited) 7 episodes, 1967
- Tom Anfinsen
- Â Crewman / ... (uncredited) 6 episodes, 1966-1969
- Robert Metz
- Â Operations Division Lieutenant (uncredited) 6 episodes, 1966-1968
- Walker Edmiston
- Â Balok / ... (uncredited) 5 episodes, 1966-1968
- Bob Johnson
- Â First Talosian / ... (uncredited) 6 episodes, 1966-1968
- Carey Foster
- Â Enterprise crewmember / ... (uncredited) 5 episodes, 1966-1967
- Gary Wright
- Â Enterprise Sciences Crewman / ... (uncredited) 5 episodes, 1967-1969
- Bob Orrison
- Â 1st Engineer / ... (uncredited) 5 episodes, 1967-1968
- John Burnside
- Â Bridge Crewmember / ... (uncredited) 4 episodes, 1966-1967
- Dick Dial
- Â Fabrini Guard / ... (uncredited) 4 episodes, 1967-1968
- Bobby Clark
- Â Betan Townsman / ... (uncredited) 4 episodes, 1967
- John Hugh McKnight
- Â Command Lieutenant / ... (uncredited) 3 episodes, 1966-1968
- Walter Soo Hoo
- Â Crewman / ... (uncredited) 3 episodes, 1966-1968
- Tom Lupo
- Â Security Guard (uncredited) 3 episodes, 1966-1967
- Basil Poledouris
- Â Bardoli / ... (uncredited) 3 episodes, 1967-1968
- Marlys Burdette
- Â Female Android / ... (uncredited) 3 episodes, 1967-1968
- Russ Peek
- Â Sarek's 2nd Vulcan Aide / ... (uncredited) 3 episodes, 1967
- James Drake
- Â Janowski / ... (uncredited) 3 episodes, 1968-1969
- Tony Dante
- Â Fabrini Oracle Guard / ... (uncredited) 3 episodes, 1968
- Leslie Carol Shatner
- Â Brunette Girl / ... (uncredited) 2 episodes, 1966-1968
- Tom Curtis
- Â Corrigan / ... (uncredited) 2 episodes, 1966-1967
- Jan Reddin
- Â Crewwoman / ... (uncredited) 2 episodes, 1966-1967
- Ron Kinwald
- Â Starbase 11 Bar Patron / ... (uncredited) 2 episodes, 1966-1967
- Gene Roddenberry
- Â Enterprise Chef / ... (uncredited) 2 episodes, 1966
- Sandra Lee Gimpel
- Â M-113 Creature / ... (uncredited) 4 episodes, 1966
- Brett Dunham
- Â Security Chief Pitcairn (uncredited) 2 episodes, 1966
- Bob Miles
- Â Cloud City Sentinel #2 / ... (uncredited) 2 episodes, 1967-1969
- Lars Hensen
- Â Betan Townsman / ... (uncredited) 2 episodes, 1967-1969
- Tom Steele
- Â Klingon Soldier / ... (uncredited) 2 episodes, 1967-1968
- Monty O'Grady
- Â Council Member / ... (uncredited) 2 episodes, 1967
- Gary Combs
- Â Gorn / ... (uncredited) 2 episodes, 1967
- Dick Cherney
- Â Council Member / ... (uncredited) 2 episodes, 1967
- David Armstrong
- Â Eminiar Guard / ... (uncredited) 2 episodes, 1967
- Al Roberts
- Â Council Member / ... (uncredited) 2 episodes, 1967
- Steve Hershon
- Â Enterprise Officer / ... (uncredited) 2 episodes, 1967
- Benjie Bancroft
- Â Iotian Passerby / ... (uncredited) 2 episodes, 1968
- Robert Strong
- Â Romulan Guard / ... (uncredited) 2 episodes, 1968
- Eddie Hice
- Â Security Guard / ... (uncredited) 2 episodes, 1968
- Phil Morris
- Â Boy - Army Helmet (uncredited) 1 episode, 1966
- Felix Silla
- Â Talosian (uncredited) 1 episode, 1966
- Meg Wyllie
- Â The Keeper (uncredited) 1 episode, 1966
- Adam Roarke
- Â C.P.O. Garrison (uncredited) 2 episodes, 1966
- Robert Phillips
- Â Space Officer (Orion) (uncredited) 2 episodes, 1966
- Joseph Mell
- Â Earth Trader (uncredited) 2 episodes, 1966
- Iona Morris
- Â Little African American Girl (uncredited) 1 episode, 1966
- Michael Dugan
- Â The Kalar Warrior (uncredited) 2 episodes, 1966
- Eddie Smith
- Â Crewman (uncredited) 1 episode, 1966
- William H. O'Brien
- Â Survivor (uncredited) 1 episode, 1966
- Lisabeth Shatner
- Â Girl in Red-Striped Dress (uncredited) 1 episode, 1966
- Georgia Schmidt
- Â First Talosian (uncredited) 3 episodes, 1966
- Clegg Hoyt
- Â Transporter Chief Pitcairn (uncredited) 3 episodes, 1966
- Anthony Jochim
- Â Third Survivor (uncredited) 2 episodes, 1966
- Leonard Mudie
- Â Second Survivor (uncredited) 2 episodes, 1966
- Darleen Anita Roddenberry
- Â Flowered Dress Girl (uncredited) 1 episode, 1966
- Scott Whitney
- Â Small Boy (uncredited) 1 episode, 1966
- Bob Baker
- Â Beauregard (uncredited) 1 episode, 1966
- Jim Gruzalski
- Â Don Juan (uncredited) 1 episode, 1966
- Dawn Roddenberry
- Â Little Blonde Girl (uncredited) 1 episode, 1966
- Robert H. Justman
- Â Security Guard (uncredited) 1 episode, 1966
- Serena Sande
- Â Second Talosian (uncredited) 3 episodes, 1966
- Joe Evans
- Â Survivor (uncredited) 2 episodes, 1966
- William McCarter
- Â Survivor (uncredited) 1 episode, 1966
- Rube Schaffer
- Â Survivor (uncredited) 1 episode, 1966
- Robert Chadwick
- Â Romulan Scanner Operator (uncredited) 1 episode, 1966
- Garrison True
- Â Security Guard (uncredited) 1 episode, 1966
- Irene Sale
- Â Louise (uncredited) 1 episode, 1966
- Darren Dublin
- Â Sciences Crewman (uncredited) 1 episode, 1966
- James Holt
- Â Starfleet Officer (uncredited) 1 episode, 1966
- Bennie Goldberg
- Â Transporter Technician (uncredited) 1 episode, 1966
- Jon Dweck
- Â Small Boy (uncredited) 1 episode, 1966
- Woody Talbert
- Â Crewman #2 (uncredited) 1 episode, 1966
- John Carr
- Â Guard (uncredited) 1 episode, 1966
- Billy Curtis
- Â Small Copper-Skinned Ambassador (uncredited) 1 episode, 1967
- Jerry Maren
- Â Small Copper-Skinned Ambassador (uncredited) 1 episode, 1967
- Carey Loftin
- Â Truck Driver (uncredited) 1 episode, 1967
- Bob Hoy
- Â Horta (uncredited) 1 episode, 1967
- Max Wagner
- Â Man in Mission (uncredited) 1 episode, 1967
- Lisabeth Hush
- Â The Companion (uncredited) 1 episode, 1967
- Noble 'Kid' Chissell
- Â Server (uncredited) 1 episode, 1967
- Troy Melton
- Â Eminiar Guard (uncredited) 1 episode, 1967
- Robert Buckingham
- Â Augment (uncredited) 1 episode, 1967
- Walter Bacon
- Â Onlooker on Street (uncredited) 1 episode, 1967
- Robert Hitchcock
- Â Miner (uncredited) 1 episode, 1967
- Bill Catching
- Â Anti-Matter Lazarus Being #2 (uncredited) 1 episode, 1967
- Al Wyatt Sr.
- Â Anti-Matter Lazarus Being #1 (uncredited) 1 episode, 1967
- Joe Garcio
- Â Man in Mission (uncredited) 1 episode, 1967
- Dick Cangey
- Â Otto (uncredited) 1 episode, 1967
- Marc Daniels
- Â Prof. Jackson Roykirk (uncredited) 1 episode, 1967
- Joseph Paz
- Â Vulcan Ceremonial Aide (uncredited) 1 episode, 1967
- Bill Borzage
- Â Drunk (uncredited) 1 episode, 1967
- Paul Power
- Â Elder (uncredited) 1 episode, 1967
- Joseph Glick
- Â Man in Mission (uncredited) 1 episode, 1967
- Jane Crowley
- Â Onlooker on Street (uncredited) 1 episode, 1967
- Suzanne Lodge
- Â Argelian Waitress (uncredited) 1 episode, 1967
- Alan Marston
- Â Council Member (uncredited) 1 episode, 1967
- Eleanore Vogel
- Â Onlooker on Street (uncredited) 1 episode, 1967
- Vic Christy
- Â Capellan (uncredited) 1 episode, 1967
- Buzz Barbee
- Â Ambassador Fox's Aide (uncredited) 1 episode, 1967
- Lee Allen
- Â Janus VI Miner (uncredited) 1 episode, 1967
- Martin Strader
- Â Man in Mission (uncredited) 1 episode, 1967
- Vince Cadiente
- Â Security Guard (uncredited) 1 episode, 1967
- Ron Burke
- Â Native (uncredited) 1 episode, 1967
- Ted LeGarde
- Â Herman Series (uncredited) 1 episode, 1967
- Paul Prokop
- Â Phaser Control Guard (uncredited) 1 episode, 1967
- Tom LeGarde
- Â Herman Series (uncredited) 1 episode, 1967
- Joan Johnson
- Â Female Guard (uncredited) 1 episode, 1967
- Fred Shue
- Â Crewman (uncredited) 1 episode, 1967
- Maureen Thornton
- Â Barbara Series (uncredited) 1 episode, 1967
- Richard Antoni
- Â Klingon Brawler (uncredited) 1 episode, 1967
- Mary Rice
- Â T'Pring as Child (uncredited) 1 episode, 1967
- Joan Webster
- Â Nurse (uncredited) 1 episode, 1967
- Kai J. Wong
- Â Doctor (uncredited) 1 episode, 1967
- Starr Wilson
- Â Maisie Series (uncredited) 1 episode, 1967
- Tamara Wilson
- Â Maisie Series (uncredited) 1 episode, 1967
- Barbara Webber
- Â Betan Dancer (uncredited) 1 episode, 1967
- Colleen Thornton
- Â Barbara Series (uncredited) 1 episode, 1967
- Johnny Mandell
- Â Sulu's Guard (uncredited) 1 episode, 1967
- Mauri Russell
- Â Vulcan Litter Bearer (uncredited) 1 episode, 1967
- Charles Palmer
- Â Vulcan Litter Bearer (uncredited) 1 episode, 1967
- Ed Fury
- Â Yang Drummer (uncredited) 1 episode, 1968
- Charlie Picerni
- Â Klingon (uncredited) 1 episode, 1968
- April Tatro
- Â Cat Girl (uncredited) 1 episode, 1968
- Adele Yoshioka
- Â Kohm Servant (uncredited) 1 episode, 1968
- Shep Houghton
- Â Cameraman (uncredited) 1 episode, 1968
- Nick Borgani
- Â Hood (uncredited) 1 episode, 1968
- Edwin Rochelle
- Â Man With Newspaper (uncredited) 1 episode, 1968
- Chester Hayes
- Â Sound Effects Man (uncredited) 1 episode, 1968
- Gil Perkins
- Â Slave #3 (uncredited) 1 episode, 1968
- Phil Adams
- Â Klingon Soldier (uncredited) 1 episode, 1968
- Robert D'Arcy
- Â Pedestrian (uncredited) 1 episode, 1968
- Rudy Doucette
- Â Staff Member (uncredited) 1 episode, 1968
- David Sharpe
- Â Security Officer (uncredited) 1 episode, 1968
- Charles Cirillo
- Â Barfly (uncredited) 1 episode, 1968
- George American Horse
- Â Indian (uncredited) 1 episode, 1968
- Victor Paul
- Â Klingon Crewman (uncredited) 1 episode, 1968
- Alan Gibbs
- Â Security Officer (uncredited) 1 episode, 1968
- Paul Stader
- Â Slave #1 (uncredited) 1 episode, 1968
- Foster Hood
- Â Indian (uncredited) 1 episode, 1968
- Joe Walls
- Â Slave (uncredited) 1 episode, 1968
- Len Felber
- Â Soldier at Party (uncredited) 1 episode, 1968
- Clark Ross
- Â Iotian Passerby (uncredited) 1 episode, 1968
- Hubie Kerns
- Â Klingon Crewman (uncredited) 1 episode, 1968
- Jim Michael
- Â Hood (uncredited) 1 episode, 1968
- Roy N. Sickner
- Â Villager (uncredited) 1 episode, 1968
- Vincent St. Cyr
- Â Father of Drowning Boy (uncredited) 1 episode, 1968
- Bob Whitney
- Â Soldier at Party (uncredited) 1 episode, 1968
- John Zimeas
- Â Spectator (uncredited) 1 episode, 1968
- Esther Ying Lee
- Â Pedestrian (uncredited) 1 episode, 1968
- Victor Toyota
- Â Tsing Tao (uncredited) 1 episode, 1968
- Ken Kane
- Â Workman (uncredited) 1 episode, 1968
- Sally Yarnell
- Â Lieutenant (uncredited) 1 episode, 1969
- Marvin Walters
- Â Troglyte #2 (uncredited) 1 episode, 1969
- John Buonomo
- Â Orderly (uncredited) 1 episode, 1969