Elenco
Jeffrey Hunter
Christopher Pike
Leonard Nimoy
Spock
Majel Barrett
Number One
Susan Oliver
Vina
Meg Wyllie
The Keeper
Peter Duryea
Lieutenant José Tyler
Laurel Goodwin
Yeoman J. M. Colt
Clegg Hoyt
Transporter Chief Pitcairn
Malachi Throne
The Keeper (voice)
Michael Dugan
The Kaylar
Georgia Schmidt
First Talosian
Robert C. Johnson
First Talosian (voice)
Serena Sande
Second Talosian
Jon Lormer
Dr. Theodore Haskins
Adam Roarke
C.P.O. Garrison
Leonard Mudie
Second Survivor
Anthony Jochim
Third Survivor
Edward Madden
Enterprise Geologist
Robert Phillips
Orion Space Officer
Joseph Mell
Earth Trader
Janos Prohaska
Anthropoid Ape / Humanoid Bird
Carol Daniels
Bridge Crewmember (uncredited)
Equipe
Gene Roddenberry
Producer
Lucille Ball
Executive Producer
Desi Arnaz
Executive Producer
William E. Snyder
Director of Photography
Leo H. Shreve
Editor
Pato Guzman
Production Design
Franz Bachelin
Art Direction
John Chambers
Special Effects Makeup Artist
Robert H. Justman
Assistant Director
Wah Chang
Prop Designer
Jim Danforth
Prop Maker
Earl Cooper
Sound Effects Editor
Jena Huynh
Visual Effects Coordinator
Norman A. Burza
Costume Supervisor
Bill Butler
Assistant Camera
Richard A. Kelley
Camera Operator
Janos Prohaska
Stunts
Bob Herron
Stunt Double
Sandra Lee Gimpel
Stunt Double
Carol Daniels
Stunts
Frank da Vinci
Stunts
Niel Wray
Visual Effects Supervisor
Wendy Ruiz
Visual Effects Coordinator
Chris Tezber
Visual Effects Coordinator
Robert Butler
Director
Gene Roddenberry
Writer
Alexander Courage
Music