William Shatner
Captain James T. Kirk
Acting
Leonard Nimoy
Captain Spock
Acting
DeForest Kelley
Dr. Leonard 'Bones' McCoy
Acting
James Doohan
Captain Montgomery 'Scotty' Scott
Acting
George Takei
Captain Hikaru Sulu
Acting
Walter Koenig
Cmdr. Pavel Chekov
Acting
Nichelle Nichols
Cmdr. Uhura
Acting
Christopher Plummer
General Chang
Acting
Mark Lenard
Sarek
Acting
David Warner
Chancellor Gorkon
Acting
Kim Cattrall
Lieutenant Valeris
Acting
Rosanna DeSoto
Azetbur
Acting
Kurtwood Smith
Federation President
Acting
Brock Peters
Admiral Cartwright
Acting
Paul Rossilli
Kerla
Acting
John Schuck
Klingon Ambassador
Acting
Iman
Martia
Acting
Leon Russom
Chief in Command
Acting
Michael Dorn
Klingon Defense Attorney
Acting
Robert Easton
Klingon Judge
Acting
Grace Lee Whitney
Excelsior Communications Officer (Janice Rand)
Acting
Christian Slater
Excelsior Communications Officer
Acting
Jeremy Roberts
Excelsior Officer
Acting
Darryl Henriques
Nanclus
Acting
Matthias Hues
Second Klingon General
Acting
Clifford Shegog
Klingon Officer
Acting
William Morgan Sheppard
Klingon Commander
Acting
Brett Porter
General Stex
Acting
Angelo Tiffe
Excelsior Navigator
Acting
Boris Lee Krutonog
Helmsman Lojur
Acting
Tom Morga
Brute
Acting
Todd Bryant
Klingon Translator
Acting
John Bloom
Behemoth Alien
Acting
Jim Boeke
Klingon General
Acting
Michael Snyder
Crewman Dax
Acting
Denise Lynne Roberts
Bridge Background (uncredited)
Crew