Muggs McGinnis

Leo Gorcey

Acting

Danny Breslin

Bobby Jordan

Acting

Limpy

Huntz Hall

Acting

Officer Tom Brady

Warren Hull

Acting

Mary Breslin

Charlotte Henry

Acting

Clancy

Keye Luke

Acting

Monk Martin

Bobby Stone

Acting

Skinny, red-haired kid

Donald Haines

Acting

Scruno

Sunshine Sammy Morrison

Acting

PeeWee

David Gorcey

Acting

Mrs. Brady

Martha Wentworth

Acting

Cop at Prizefight with the Lieutenant

Jack Mulhall

Acting

Slats Morrison

Eddie Foster

Acting

Dorgan

Dennis Moore

Acting

Henchman Dutch

Tony Carson

Acting

Muggs' Trainer

Pat Costello

Acting

Police Lieutenant

Dick Ryan

Acting

Johnny Ryan, Muggs' opponent (uncredited)

Bill Cartledge

Acting

Head of Reform School (uncredited)

Minerva Urecal

Acting

Henchman Nick (uncredited)

Jack Chefe

Acting

Milkman George (uncredited)

Jack Carr

Acting