Leonard Nimoy
Spock
Majel Barrett
Number One
Jon Lormer
Dr. Theodore Haskins
Jeffrey Hunter
Christopher Pike
Adam Roarke
C.P.O. Garrison
Laurel Goodwin
Yeoman J. M. Colt
Joseph Mell
Earth Trader
Susan Oliver
Vina
Anthony Jochim
Third Survivor
Leonard Mudie
Second Survivor
Robert Phillips
Orion Space Officer
Meg Wyllie
The Keeper
Clegg Hoyt
Transporter Chief Pitcairn
Malachi Throne
The Keeper (voice)
Edward Madden
Enterprise Geologist