110 mins PG Star Trek VI: the Undiscovered Country | 1991 Adaptation, Adventure Captain Kirk andf his crew must uncover a Federation conspiracy to eliminate an alien race. 110 mins PG Director: Nicholas Meyer, Steven Charles Jaffe Writers: Nicholas Meyer, Denny Martin Flinn, Leonard Nimoy Stars: William Shatner, Leonard Nimoy, DeForest Kelley | See full cast & crew » Awards: 2 Oscar nominations. | full awards » Jump to Related Articles Photos Cast & Crew 2Awards Synopsis Cast William Shatner ... Admiral James T Kirk Actor Leonard Nimoy ... Captain Spock Actor DeForest Kelley ... Doctor Leonard "Bones" McCoy Actor James Doohan ... Montgomery "Scotty" Scott Actor Walter Koenig ... Pavel Chekov Actor Nichelle Nichols ... Nytoba Uhura Actor George Takei ... Hikaru Sulu Actor Kim Cattrall ... Lieutenant Valeris Actor Mark Lenard ... Sarek Actor Grace Lee Whitney ... "Excelsior" Communications Officer Actor Brock Peters ... Admiral Cartwright Actor Leon Russom ... Chief in Command Actor Full Cast & Crew Director Nicholas Meyer Director Full Cast & Crew Writers Nicholas Meyer Screenplay Denny Martin Flinn Screenplay Full Cast & Crew Company 20th Century Fox Production Company Alaska Film Office Production Company Alaska Helicopter Company Production Company Central Casting, Inc. Production Company Cimity Arts Production Company Cinema Research Corporation Production Company Full Cast & Crew Synopsis Peace talks between the Federation and the evil Klingons go awry.