The Toughest Kid in School A meek boy tries to prove he's the toughest kid in school. Barlow: John Clifford. Mrs. Crawford: Holly Harris. Zack: Paul Engle. Paul Petersen, Carl Betz. Details Casts Title The Toughest Kid in School Genres Comedy Family Release Date 1961-12-28 Episode Runtime 00 Hours 30 Minutes Season Number 4 Episode Number 16 Production Companies Donna Reed Donna Stone Carl Betz Alex Stone Shelley Fabares Mary Stone Paul Petersen Jeff Stone