Edwin L. Marin Director Mary Carlisle Vivian Actor Buster Crabbe Bob North Actor Charles Starrett Morley Actor Florence Lake Dizzy Actor Eddie Tamblyn Harry Actor Sally Starr Madge Actor Tom Dugan Trainer Actor Burr McIntosh Professor Actor Grady Sutton Pledge Actor Purnell Pratt Doctor Actor Franklin Parker House Prexy Actor Mary Blackford Bunny Actor Major Goodsell Coach Actor George Waggner Screenwriter Luther Reed Screenwriter Albert DeMond Screenwriter William T. Lackey Producer Edward Ward Original Music Gilbert Warrenton Cinematographer J. Edwin Robbins Film Editing