Guest Stars DeForest Kelley as Dr. Leonard Horatio "Bones" McCoy James Doohan as Lt. Cmdr. Montgomery "Scotty" Scott Nichelle Nichols as Lt. Nyota Uhura George Takei as Lt. Hikaru Sulu Majel Barrett Roddenberry as Nurse Christine Chapel Craig Huxley as Peter Joan Swift as Aurelan Kirk Maurishka as Yeoman Zahra Jerry Catron as Second Denevan Fred Carson as First Denevan Uncredited David Armstrong as Kartan