cast
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William Shatner
Admiral James T. Kirk
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Leonard Nimoy
Captain Spock
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Ricardo Montalban
Khan Noonien Singh
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DeForest Kelley
Dr. Leonard 'Bones' McCoy
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James Doohan
Cmdr. Montgomery 'Scotty' Scott
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Walter Koenig
Cmdr. Pavel Chekov
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George Takei
Cmdr. Hikaru Sulu
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Nichelle Nichols
Cmdr. Uhura
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Bibi Besch
Dr. Carol Marcus
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Merritt Butrick
Dr. David Marcus
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Paul Winfield
Captain Clark Terrell
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Kirstie Alley
Lt. Saavik
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Judson Scott
Joachim
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Ike Eisenmann
Preston
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John Vargas
Jedda
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John Winston
Kyle
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Paul Kent
Beach
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Nicholas Guest
Cadet
- Russell Takaki Madison
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Kevin Rodney Sullivan
March
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Joel Marston
Crew Chief
- Laura Banks Khan's Navigator
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Steve Bond
Khan's Crewman #1
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Brett Baxter Clark
Khan's Crewman #2
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Gilbert B. Combs
Enterprise Engineer
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James Horner
Enterprise Crewman
- George Sasaki Crewmember at Spock's Funeral (uncredited)
- Teresa E. Victor Bridge Voice
- Dianne Harper Radio Voice
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David Ruprecht
Radio Voice (credited as David Ruprecht)
- Marcy Vosburgh Computer Voice
- Bill Baker Enterprise Trainee (uncredited)
- Steve Blalock Trainee Crewmember (uncredited)
- Fletcher Bryant Khan's Crewman (uncredited)
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Bobby Burns
Crew Member at Spock's Funeral (uncredited)
- Diane Carter Regula I Scientist (uncredited)
- Ann Chatterton Khan Crew Member (uncredited)
- Tim Culbertson Khan's Henchman (uncredited)
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Eddy Donno
Corpse of Regula I Cook (uncredited)
- John Gibson Khan's Crewman #4 (uncredited)
- Richard Forinash Enterprise Torpedo Officer (uncredited)
- Anthony Gordon Regula I Steward (uncredited)
- Ree Kai Enterprise Trainee (uncredited)
- Hubie Kerns Jr. Enterprise Engineer Trainee (uncredited)
- Dennis Landry Khan's Crewman #5 (uncredited)
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Cristian Letelier
Khan's Crewman #6 (uncredited)
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Jeff McBride
Khan's Crewman (uncredited)
- Jeff McBride Human Augment (uncredited)
- Roger Menache Khan's Crewman #7 (uncredited)
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Tom Morga
Starfleet Astronaut (uncredited)
- Jim Painter Crewmember at Spock's Funeral (uncredited)
- Nanci Rogers Khan's Crew Member (uncredited)
- Tony Roque Enterprise Engineer (uncredited)
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Kimberly L. Ryusaki
Enterprise Trainee (uncredited)
- John Bear Staible Enterprise Crewmember (uncredited)
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Deney Terrio
Khan's Crewman #11 (uncredited)
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Philip Weyland
Starfleet Crewman (uncredited)
- Daniel Wong Enterprise Engineer Cadet (uncredited)