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 Gary Lockwood Lt. Cmdr. Gary Mitchell Guest Star Sally Kellerman Dr. Elizabeth Dehner Guest Star Eddie Paskey Lt. Leslie Guest Star Lloyd Haynes Alden Guest Star Andrea Dromm Yeoman Smith Guest Star Paul Carr Lt. Lee Kelso Guest Star Paul Fix Dr. Piper Guest Star Gene Roddenberry Executive Producer Samuel A. Peeples Writer James Goldstone Director