Guest Stars DeForest Kelley as Dr. Leonard Horatio "Bones" McCoy Grace Lee Whitney as Yeoman Janice Rand Jim Goodwin as Lt. John Farrell Michael J. Pollard as Jahn Kim Darby as Miri Keith Taylor as Jahn's Friend David L. Ross as Security Guard #1 Ed McCready as Boy Creature John Megna as Little Boy Kellie Flanagan as Blonde Girl Steven McEveety as Redheaded Boy