Guest Stars James Doohan as Lt. Cmdr. Montgomery "Scotty" Scott Nichelle Nichols as Lt. Nyota Uhura Walter Koenig as Ensign Pavel Chekov Majel Barrett Roddenberry as Nurse Christine Chapel Charles Drake as Commodore Stocker Laura Wood as Elaine Johnson Felix Locher as Robert Johnson Sarah Marshall as Janet Wallace Carolyn Nelson as Yeoman Atkins Beverly Washburn as Arlene Galway
