Admiral James T. Kirk
William Shatner
Mr. Spock
Leonard Nimoy
CPO Janice Rand
Grace Lee Whitney
Klingon Captain
Mark Lenard
Alien Boy
Billy Van Zandt
Epsilon Technician
Roger Aaron Brown
Airlock Technician
Gary Faga
Crew Member
Franklyn Seales
Klingon Crewman
Joel Kramer
Cmdr. Branch
David Gautreaux
Assistant to Rand
John Gowans
Cargo Deck Ensign
Howard Itzkowitz
Dr. Leonard 'Bones' McCoy
DeForest Kelley
Lt. Cmdr. Sonak
Jon Rashad Kamal
Chief DiFalco
Marcy Lafferty
Lieutenant
Michele Povill
Technician
Jeri McBride
Chief Ross
Terrence O'Connor
Lt. Cleary
Michael Rougas
Woman
Susan O'Sullivan
Ralph Brannen
Ralph Byers
Paula Crist
Cmdr. Montgomery 'Scotty' Scott
James Doohan
Iva Lane
Momo Yashima
Jimmie Booth
Dave Moordigian
Tom Morga
Tony Rocco
Joel Schultz
Craig Thomas
Vulcan Master
Edna Glover
Norman Stuart
Lt. Cmdr. Hikaru Sulu
George Takei
Paul Weber
Security Officer
Joshua Gallegos
Yeoman
Lisa Chess
Leslie C. Howard
Technical Assistant
Sayra Hummel
Junero Jennings
Extra (uncredited)
Christopher Doohan
Lt. Pavel Chekov
Walter Koenig
Lt. Cmdr. Uhura
Nichelle Nichols
Captain William Decker
Stephen Collins
Lt. Ilia / The Probe
Persis Khambatta
Dr. Christine Chapel
Majel Barrett
Stunts
Bob Bralver
Visual Effects
Douglas Trumbull
Original Music Composer
Jerry Goldsmith
Supervising Sound Editor
Richard L. Anderson
Sound Effects
Alan Howarth
Director of Photography
Richard H. Kline
Editor
Todd C. Ramsay
Producer
Gene Roddenberry
Director
Robert Wise
Alexander Courage
Makeup Artist
Ve Neill
Sound Editor
Alan Robert Murray
Visual Effects Camera
Robert Elswit
Costume Design
Robert Fletcher
Art Direction
John Vallone
Production Design
Harold Michelson
Leon Harris
Joseph R. Jennings
Jon Povill
Set Decoration
Linda DeScenna
Casting
Marvin Paige
Story
Alan Dean Foster
Screenplay
Harold Livingston
Richard Yuricich
John Dykstra
Animation Supervisor
Robert Swarthe
Francesco Lupica
Special Effects Coordinator
Ray Mattey
Matte Painter
Rocco Gioffre
Title Designer
Richard Foy
Cecelia Hall
George Watters II
Dirk Dalton
Stephen Hunter Flick
Alex Weldon
Joel Goldsmith
Colin Waddy
Martin Bresin
Frank Serafine
Animation
Harry Moreau
Darrell Pritchett
Matthew Yuricich
Robert Abel
Sound Mixer
Tom Overton
Makeup Effects
Rick Stratton
Unit Production Manager
Phil Rawlins
Sound Re-Recording Mixer
Bill Varney
Script Supervisor
Bonnie Prendergast
Executive In Charge Of Production
Lindsley Parsons Jr.
Gaffer
Larry D. Howard
Janna Phillips
Kym Washington Longino
Fred B. Phillips
Stunt Double
Assistant Director
Daniel McCauley
Steve Maslow
Carlos Yeaggy
Bill Couch
Gregg Landaker
Second Assistant Director
Douglas E. Wise
Noyan Cosarer
John Hugh McKnight
Keith Lane Jensen