Wallace Beery
饰 Andy 'Champ' Purcell
Jackie Cooper
饰 Dink Purcell
Irene Rich
饰 Linda Carleton
Hale Hamilton
饰 Tony Carleton
Marcia Mae Jones
饰 Mary Lou Carleton
Dannie Mac Grant
饰 Boy Taunting Dink (uncredited)
Frank Hagney
饰 Mexican Champ Manuel Quiroga (uncredited)
Dell Henderson
饰 The Doctor (uncredited)
Tom McGuire
饰 Los Angeles Promoter (uncredited)
Bob Perry
饰 Referee (uncredited)
Lee Phelps
饰 Louie the Bartender (uncredited)
Andy Shuford
饰 Boy at Racetrack (uncredited)
Dan Tobey
饰 Ring Announcer (uncredited)
