When an unidentified alien destroys three powerful Klingon cruisers, Captain James T. Kirk returns to the newly transformed U.S.S. Enterprise to take command.
William Shatner
as Admiral James T. Kirk
Leonard Nimoy
as Mr. Spock
DeForest Kelley
as Dr. Leonard 'Bones' McCoy
James Doohan
as Cmdr. Montgomery 'Scotty' Scott
George Takei
as Lt. Cmdr. Hikaru Sulu
Walter Koenig
as Lt. Pavel Chekov
Nichelle Nichols
as Lt. Cmdr. Uhura
Stephen Collins
as Captain William Decker
Persis Khambatta
as Lt. Ilia / The Probe
Majel Barrett
as Dr. Christine Chapel
Grace Lee Whitney
as CPO Janice Rand
Mark Lenard
as Klingon Captain
