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 David L. Ross as Guard Sid Haig as First Lawgiver Charles Macaulay as Landru Jon Lormer as Tamar Harry Townes as Reger Torin Thatcher as Marplon Morgan Farley as Hacom Lev Mailer as Bilar Brioni Farrell as Tula Christopher Held as Lindstrom Sean Morgan as O'Neil
