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 Jeff Corey Plasus Guest Star Diana Ewing Droxine Guest Star Charlene Polite Vanna Guest Star Kirk Raymone Cloud Guard 1 Guest Star Jimmy Fields Cloud Guard 2 Guest Star Ed Long Midro Guest Star Fred Williamson Anka Guest Star Garth Pillsbury Prisoner Guest Star Harv Selsby Guard Guest Star Jay D. Jones Prisoner 1 Guest Star Dick Geary Sentinel 1 Guest Star Louie Elias Troglyte 1 Guest Star Gene Roddenberry Executive Producer Margaret Armen Writer Jud Taylor Director