TOS Season 3 performers
This list of performers has all actors and actresses who appeared in, or gave voice to, roles in  Season 3.

A 
 Sharon Acker as Odona
 Phil Adams as Klingon crewman (uncredited)
 Tom Anfinsen as Enterprise medical technician (uncredited)
 Michael Ansara as Kang
 Lou Antonio as Lokai
 Barry Atwater as

B 
 Barbara Babcock as
 Loskene (voice; uncredited)
 Philana
 Ed Bakey as first fop
 Barbara Baldavin as "" 
 Majel Barrett-Roddenberry as
 Christine Chapel
 Computer Voice
 Stan Barrett as Jailer
 Arthur Batanides as 
 Paul Baxley as
 Stunt double for William Shatner (, , ; uncredited)
 Freeman (uncredited)
 Defiant captain (uncredited)
 Charles Beck as Elasian guard #2
 Bonnie Beecher as 
 Caesar Belli as Steve O'Connel
 Melvin Belli as Gorgan
 Lee Bergere as 
 Alan Bergmann as 
 Geoffrey Binney as Compton
 William Blackburn as
 Hadley (uncredited)
 Gideon native (uncredited)
 Arell Blanton as Dickerson
 John Boyer as Guard
 Booker Bradshaw as Joseph M'Benga
 Victor Brandt as
 Watson
 Tongo Rad
 Robert Bralver as
 Enterprise engineer (uncredited)
 Stunt double for DeForest Kelley (; uncredited)
 Kathie Browne as 
 Mark Robert Brown as Don Linden
 Ron Burke as stunt double for DeForest Kelley ()

C 
 Dave Cadiente as Enterprise crewman (uncredited)
 Fred Carson as "Creature #2" (uncredited)
 Al Cavens as Second Fop
 Charles Cirillo as illusory bar patron (uncredited)
 Gordon Coffey as Romulan soldier
 Richard Compton as Romulan technical officer
 Jeff Corey as Plasus
 Yvonne Craig as Marta

D 
 James Daly as Flint
 Tony Dante as Fabrini Oracle guard (uncredited)
 James Daris as "Creature"
 Frank da Vinci as
 Vinci (uncredited)
 Brent (uncredited)
 Defiant crewman (uncredited)
 Stunt double for DeForest Kelley (; uncredited)
 Vince Deadrick as engineer (uncredited)
 Carol Daniels Dement as 
 Richard Derr as Westervliet
 Dick Dial as 
 Fabrini guard (uncredited)
 security guard #2 (uncredited)
 Jack Donner as 
 James Doohan as
 Montgomery Scott
 an Illusion of Montgomery Scott
 Melkotian buoy (voice; uncredited)
 Oracle (voice; uncredited) 
 Phyllis Douglas as "Girl #2"
 Deborah Downey as "Girl #1"
 Gary Downey as Tellarite 
 James Drake as Sickbay intern
 Lee Duncan as 
 Michael Dunn as Alexander
 Dick Durock as Elasian guard #1
 Marj Dusay as 
 Gene Dynarski as Krodak

E 
 Lou Elias as
 1st Technician/Engineer
 Troglyte #1
 Libby Erwin as "Technician"
 Jason Evers as Rael
 Diana Ewing as Droxine

F 
 Pamelyn Ferdin as Mary Janowski
 Jimmy Fields as
 Cloud Guard #2
 Enterprise security crewman (uncredited)
 Brad Forrest as Wyatt
 David Frankham as Larry Marvick

G 
 Donna Garrett as stunt double for Charlene Polite (uncredited)
 Ralph Garrett as 
 Troglyte stunt performer (uncredited)
 Stunt double for David Frankham (uncredited)
 Richard Geary as
 Stunt double for Rudy Solari (uncredited)
 Security guard (uncredited)
 Andorian
 Robert Gentile as Romulan technician
 Alan Gibbs as Security guard (uncredited)
 Sam Gilman as Doc Holliday
 Armando Gonzales as stand-in double for Leonard Nimoy
 Frank Gorshin as Bele

H 
 Richard Hale as Goro
 Mariette Hartley as Zarabeth
 Johnny Haymer as Constable
 Kathryn Hays as Gem
 Lars Hensen as Elba II inmate (uncredited)
 Robert Herron as 
 Eddie Hice as security guard (uncredited)
 Erik Holland as Ekor
 Roger Holloway as
 Roger Lemli (uncredited)
 Illusion of Roger Lemli (uncredited)
 Rex Holman as Morgan Earp 
 Skip Homeier as Sevrin
 Susan Howard as Mara
 Mike Howden as Romulan guard
 Craig Hundley as Tommy Starnes
 David Hurst as Hodin

I 
Steve Ihnat as Garth

J 
 Jay Jones as
 2nd technician (uncredited)
 Stunt double for James Doohan (, ; uncredited)
 Klingon crewman (uncredited)
 Gideon guard (uncredited)
 Troglyte #3 (uncredited)
 Nathan Jung as

K 
 Anna Karen as Mort
 Pete Kellett as
 "Creature #3" (uncredited)
 Klingon crewman (uncredited)
 DeForest Kelley as McCoy
 Hubie Kerns, Sr. as Klingon crewman (uncredited)
 Walter Koenig as Chekov

L 
 Lamont Laird as Indian boy
 Harry Landers as Arthur Coleman
 Bart La Rue as Yarnek (voice; uncredited)
 Sheila Leighton as Luma
 John Lindesmith as Engineer
 Joanne Linville as Romulan commander
 Ed Long as Midro
 Jon Lormer as "Old Man"
 Keye Luke as
 Donald Cory
 Garth (posing as Donald Cory)

M 
 Jeannie Malone as 
 Fabrini servant (uncredited)
 yeoman (uncredited)
 lieutenant (uncredited)
 Charles Maxwell as Virgil Earp
 Ed McCready as Tombstone barber
 Lee Meriwether as 
 Losira
  (hologram)
 Sean Morgan as O'Neil
 Byron Morrow as Westervliet
 Diana Muldaur as Miranda Jones
 Kermit Murdock as Prosecutor

N 
 Charles Napier as Adam
 Nichelle Nichols as Uhura
 Leonard Nimoy as
 Spock
 Kollos (possessing Spock's body)
 Garth (posing as Spock)
 France Nuyen as Elaan

O 
 Bob Orrison as Cowboy (uncredited)

P 
 Derek Partridge as Dionyd
 Eddie Paskey as Leslie (uncredited)
 Victor Paul as Klingon crewman (uncredited)
 Charles Picerni as security guard
 Garth Pillsbury as Troglyte prisoner
 Phillip Pine as 
 Charlene Polite as Vanna
 Naomi Pollack as
 "Native American"
 Rahda
 Janos Prohaska as Yarnek (uncredited)

R 
 Mary-Linda Rapelye as Irina Galliulin
 Kirk Raymone as Stratos guard #1
 Frieda Rentie as Sciences crewmember / Yeoman (uncredited)
 Davis Roberts as Ozaba
 Jay Robinson as Petri
 Elizabeth Rogers as 
 David L. Ross as
 
 Galloway

S 
 Willard Sage as Thann
 George Sawaya as Klingon crewman (uncredited)
 Ted Scott as Eraclitus
 Sabrina Scharf as Miramanee
 Charles Seel as Ed
 Harv Selsby as Ardanan guard
 David Sharpe as security guard (uncredited)
 William Shatner as
 James T. Kirk
 Garth (posing as James T. Kirk)
 Janice Lester (possessing James T. Kirk's body)
 Jan Shutan as Mira Romaine
 K.L. Smith as "Klingon"
 Sandra Smith as
 Janice Lester
 James T. Kirk (possessing Janice Lester's body)
 Ron Soble as Wyatt Earp
 Abraham Sofaer as Melkotian (voice)
 Louise Sorel as Rayna Kapec
 Rudy Solari as Salish
 Vince St. Cyr as Father of Drowning Boy (uncredited)
 Robert Strong as Romulan guard (uncredited)
 Liam Sullivan as Parmen

T 
 George Takei as Sulu
 Mark Tobin as "Klingon"
 Brian Tochi as Ray Tsing Tao
 Vic Toyota as Mr.  (uncredited)

V 
 Ron Veto as Harrison (stock footage only, uncredited)
 Peter Virgo, Jr. as "Warrior"

W 
 Marvin Walters as Troglyte #2 (uncredited)
 Kenneth Washington as John B. Watkins
 Jesse Wayne as stunt double for Walter Koenig (uncredited; ) 
 James Wellman as Starnes
 Fred Williamson as Anka
 Jason Wingreen as Linke
 John Winston as Kyle
 Ian Wolfe as 
 Mr. Atoz
 Mr. Atoz (replica)
 Katherine Woodville as Natira
 Gary Wright as Enterprise sciences crewman (uncredited)

Y 
 Sally Yarnell as command lieutenant (uncredited)
 Tony Young as Kryton

Z 
 Dick Ziker as Enterprise sciences lieutenant (uncredited)
 Bill Zuckert as Johnny Behan

pt:Atores de TOS
Production lists
 TOS Season 3
 Season 3