William Shatner Capt. James T. Kirk Actor Leonard Nimoy Mr. Spock Actor DeForest Kelley Dr. Leonard McCoy Actor James Doohan Engineer Montgomery Scott Actor Nichelle Nichols Lt. Uhura Actor George Takei Lt. Sulu Actor Frank da Vinci Brent Guest Star Grace Lee Whitney Yeoman Janice Rand Guest Star Robert Walker Jr. Charlie Evans Guest Star Laura Wood Prematurely Aged Woman Guest Star John Lindesmith Helmsman Guest Star Bob Herron Sam Guest Star Charles J. Stewart Capt. Ramart Guest Star Dallas Mitchell Tom Nellis Guest Star Don Eitner Navigator Guest Star Patricia McNulty Tina Lawton Guest Star John Bellah Crewman 1 Guest Star Garland Thompson Crewman 2 Guest Star Abraham Sofaer Thasian Guest Star Gene Roddenberry Executive Producer D.C. Fontana Writer Larry Dobkin Director