Reparto (30)
William Shatner
James T. Kirk
Leonard Nimoy
Spock
DeForest Kelley
Dr. McCoy
James Doohan
Scott
George Takei
Sulu
Nichelle Nichols
Uhura
Walter Koenig
Pavel Chekov
Frank da Vinci
Clifford Brent
Eddie Paskey
Lieutenant Leslie (uncredited)
Ron Veto
Harrison
John Winston
Lieutenant Kyle
David L. Ross
Galloway
Majel Barrett
Christine Chapel
Grace Lee Whitney
Janice Rand
Barbara Babcock
Commander Loskene (voice)
Walker Edmiston
Balok (voice) (uncredited)
Bill Blackburn
Lieutenant Hadley (uncredited)
Tom Anfinsen
Crewman (uncredited)
Bobby Bass
Guard (uncredited)
Vic Perrin
Nomad (voice)
Elizabeth Rogers
Lt. Palmer
Michael Barrier
DeSalle
Jim Goodwin
Farrell
Sean Kenney
DePaul
Janos Prohaska
The Mugato
Richard Compton
Washburn
Ted Cassidy
Gorn (voice)
Bob Johnson
First Talosian (voice) (uncredited)
Barbara Baldavin
Communications Officer
Bruce Mars
Crewman