Guest Stars James Doohan as Lt. Cmdr. Montgomery "Scotty" Scott Nichelle Nichols as Lt. Nyota Uhura George Takei as Lt. Hikaru Sulu Walter Koenig as Ensign Pavel Chekov John Winston as Transporter Chief Michael Barrier as Lt. Vincent DeSalle Antoinette Bower as Sylvia Jay D. Jones as Crewman Jackson Rhodie Cogan as First Witch Gail Bonney as Second Witch Mary Esther Denver as Third Witch Co Starring Theodore Marcuse as Korob