Norman Chaney
— Chubby
Jackie Cooper
— Jackie
Allen 'Farina' Hoskins
— Farina
Bobby 'Wheezer' Hutchins
— Wheezer
Mary Ann Jackson
— Mary Ann
Pete the Dog
— Pete
Julian Rivero
— Henry, Jackie's Dad (Spanish language version)
Betty Jane Beard
— Hector (uncredited)
Chet Brandenburg
— Flustered Man (uncredited)
Mary Gordon
— Chubby's Mother (uncredited)
Gertrude Howard
— Farina's Mother (uncredited)
Edgar Kennedy
— Kennedy the Cop (uncredited)
Charles McAvoy
— Henry - Jackie's Dad (uncredited)