
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.

as Admiral James T. Kirk

as Mr. Spock

as Dr. Leonard 'Bones' McCoy

as Cmdr. Montgomery 'Scotty' Scott

as Lt. Cmdr. Hikaru Sulu

as Lt. Pavel Chekov

as Lt. Cmdr. Uhura

as Captain William Decker

as Lt. Ilia / The Probe

as Dr. Christine Chapel

as CPO Janice Rand

as Klingon Captain

as Alien Boy

as Epsilon Technician

as Airlock Technician

as Crew Member

as Klingon Crewman

as Cmdr. Branch

as Assistant to Rand

as Cargo Deck Ensign

as Lt. Cmdr. Sonak

as Chief DiFalco

as Lieutenant

as Technician

as Chief Ross

as Lt. Cleary

as Woman

as Crew Member

as Crew Member

as Crew Member

as Crew Member

as Crew Member

as Klingon Crewman

as Klingon Crewman

as Klingon Crewman

as Klingon Crewman

as Klingon Crewman

as Klingon Crewman

as Vulcan Master

as Vulcan Master

as Vulcan Master

as Security Officer

as Yeoman

as Yeoman

as Technical Assistant

as Technical Assistant

as Klingon Crewman (as Bill McTosh)

as Enterprise Computer (voice)

as Enterprise Crew Member (uncredited)

as Crew Member (uncredited)

as Enterprise Crew Member (uncredited)

as Enterprise Sciences Crew Member (uncredited)

as Extra (uncredited)