Full Credits
21 members

Leo Gorcey
Muggs McGinnis

Bobby Jordan
Danny Breslin

Huntz Hall
Limpy

Warren Hull
Officer Tom Brady

Charlotte Henry
Mary Breslin

Keye Luke
Clancy
Bobby Stone
Monk Martin

Donald Haines
Skinny, red-haired kid

Sunshine Sammy Morrison
Scruno

David Gorcey
PeeWee

Martha Wentworth
Mrs. Brady

Jack Mulhall
Cop at Prizefight with the Lieutenant
Eddie Foster
Slats Morrison

Dennis Moore
Dorgan
Tony Carson
Henchman Dutch
Pat Costello
Muggs' Trainer
Dick Ryan
Police Lieutenant
Bill Cartledge
Johnny Ryan, Muggs' opponent (uncredited)

Minerva Urecal
Head of Reform School (uncredited)

Jack Chefe
Henchman Nick (uncredited)
Jack Carr
Milkman George (uncredited)
17 members
Wallace Fox
Director
Harry M. Slott
Assistant Director
Arthur Hammond
Assistant Director
Donn Mullahy
Story
Carl Foreman
Writer
Brendan Wood
Story
Sam Robins
Screenplay
Sam Katzman
Producer
Ed W. Rote
Production Manager
Pete Mayer
Producer
Marcel Le Picard
Director of Photography
Johnny Lange
Music Director
Lew Porter
Music Director
Lew Porter
Original Music Composer
Glen Glenn
Sound
Fred Preble
Set Decoration
Robert Golden
Editor