A surprise visit from Spock's father provides a startling revelation: McCoy is harboring Spock's living essence.
Admiral James T. Kirk
Dr. Leonard 'Bones' McCoy
Captain Montgomery 'Scotty' Scott
Cmdr. Hikaru Sulu
Cmdr. Pavel Chekov
Cmdr. Uhura
Cmdr. Kruge
Lt. Saavik
Ambassador Sarek
Dr. David Marcus
Vulcan High Priestess
Captain Styles
Capt. Esteban
Admiral Morrow
Maltz
Spock...Age 9
Spock...Age 13
Spock...Age 17
Spock at age 25
Captain Spock / Elevator Voice
First Officer
Klingon Gunner #2
Spock's Screams
Starfleet Cadet "Mr. Adventure"
Trainee Foster
Helm Officer
Commander Janice Rand (Woman in Cafeteria)
Bar Waitress (uncredited)
Captain
Merchantman First Officer (uncredited)
