Sinopsis
Tras la desaparición de Spock y la creación del planeta Génesis, la tripulación del Enterprise se dispone a localizar el cuerpo de su compañero, a petición del padre de éste.
Reparto
William Shatner — Admiral James T. KirkDeForest Kelley — Dr. Leonard 'Bones' McCoyJames Doohan — Captain Montgomery 'Scotty' ScottGeorge Takei — Cmdr. Hikaru SuluWalter Koenig — Cmdr. Pavel ChekovNichelle Nichols — Cmdr. UhuraChristopher Lloyd — Cmdr. KrugeRobin Curtis — Lt. SaavikMark Lenard — Ambassador SarekMerritt Butrick — Dr. David MarcusJudith Anderson — Vulcan High PriestessJames B. Sikking — Captain StylesPhillip R. Allen — Capt. EstebanRobert Hooks — Admiral MorrowJohn Larroquette — MaltzCarl Steven — Spock...Age 9Vadia Potenza — Spock...Age 13Stephen Manley — Spock...Age 17Joe W. Davis — Spock at age 25Leonard Nimoy — Captain Spock / Elevator VoiceMiguel Ferrer — First OfficerBranscombe Richmond — Klingon Gunner #2Frank Welker — Spock's ScreamsScott McGinnis — Starfleet Cadet "Mr. Adventure"Phil Morris — Trainee FosterJeanne Mori — Helm OfficerGrace Lee Whitney — Commander Janice Rand (Woman in Cafeteria)Nanci Rogers — Bar Waitress (uncredited)Paul Sorensen — CaptainDanny Rogers — Merchantman First Officer (uncredited)