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 Walter Koenig Ensign Pavel Chekov Actor Sandra Smith Janice Lester Guest Star Harry Landers Dr. Coleman Guest Star Majel Roddenberry Nurse Christine Chapel Guest Star Barbara Baldavin Communications officer Guest Star David L. Ross Lt. Galoway Guest Star John Boyer Guard Guest Star Roger Holloway Lt. Lemli Guest Star Gene Roddenberry Executive Producer Arthur Singer Writer Herb Wallerstein Director