The starring cast of "" reprise their roles in "Generations". Patrick Stewart plays Captain Jean-Luc Picard, Jonathan Frakes plays Commander William T. Riker, LeVar Burton plays Lieutenant Commander Geordi La Forge, Brent Spiner plays Lieutenant Commander Data, Gates McFadden plays Chief Medical Officer Commander Beverly Crusher, Michael Dorn plays Lieutenant Commander Worf, and Marina Sirtis plays ship's counselor Commander Deanna Troi. Recurring characters from the series also return, including Barbara March and Gwynyth Walsh as the villainous Klingon sisters Lursa and B'Etor, Patti Yasutake as "Enterprise" nurse Lieutenant Alyssa Ogawa, and Whoopi Goldberg as "Enterprise" bartender Guinan. Malcolm McDowell plays Tolian Soran, the film's antagonist. McDowell had previously worked with Stewart on stage decades earlier, and relished the chance to be the one to kill Shatner's character. He liked his character's spiked hair and black ensemble, and requested that he not play an alien; "If I’m going to play this part, I don't want a scar. I don't want to look like a mutant. I’m not getting up at four in the morning to get in makeup." Alan Ruck plays "Enterprise"-B captain John Harriman. When approached for the role, Ruck assumed he would play an alien, saying, "Look, when I shave every day, I don't look in the mirror and say, 'Hey! There's a starship commander.'" Producer Rick Berman informed him that the character was from a wealthy and connected family, and was placed in command as a stepping stone to a political career. Jacqueline Kim plays "Enterprise"-B helmsman Demora Sulu. Kim consulted with art supervisor Michael Okuda to make sure her hand movements and manipulations of the ships' controls were consistent and accurate. Glenn Morshower played an "Enterprise"-B navigator; he apologized to director David Carson for a poor first rehearsal of his scenes, because as a "Star Trek" fan he had to get used to playing alongside his idols. Initially, the entire principal cast of "The Original Series" was featured in the film's first script, but only three members appeared in the film: William Shatner as Captain James T. Kirk, James Doohan as Montgomery Scott, and Walter Koenig as Pavel Chekov. Leonard Nimoy and DeForest Kelley declined to appear as Spock and Leonard McCoy.