Captain James Tiberius 'Jim' Kirk
Mister Spock
Dr. McCoy
Nilz Baris
Koloth
Cyrano Jones
Lurry
Scott
Uhura
Korax
Admiral Fitzpatrick (as Ed Reimers)
Chekov
Arne Darvin
Ensign Freeman
Guard (as David Ross)
Trader
Klingon Brawler (uncredited)
Guard (uncredited)
Lieutenant Hadley (uncredited)
Bald Klingon Brawler (uncredited)
Transporter Operator (uncredited)
Security Officer (uncredited)
Lt. Lemli (uncredited)
Crewman Moody (uncredited)
Yeoman (uncredited)
Lieutenant Leslie (uncredited)
Crewman on DSK-7 (uncredited)