Terence 'Slip' Mahoney
Leo Gorcey
Horace Debussy 'Satch' Jones
Huntz Hall
Henchman 'Moose'
Dewey Robinson
Henchman 'Jockey'
Dick Paxton
'Boomer', a boy
Thomas Menzies
Josie, his big sister
Geneva Gray
Andrew T. 'Andy' Miller
Buddy Gorman
Harry 'Jag' Harmon
Benny Bartlett
Asst. Dist. Atty. John Willis
John Eldredge
Lawyer Felix Crowe
Robert Emmett Keane
Warehouse Watchman
Tom Coleman
The Judge
John Elliott
Tony 'Piggy' Locarno
Nestor Paiva
Transfusion Doctor
Wilbur Mack
Henchman-Mechanic Mike
Wade Crosby
White-capped Mechanic-Henchman
Meyer Grace
Mike Donovan
Cousin Jimmy
Frankie Darro
Ricky Moreno
Gabriel Dell
Daisy Harris
Rosemary La Planche
Chuck
David Gorcey
Whitey
William Benedict
Fr. O'Hanlon
Nelson Leigh
Mrs. Mamie Mahoney
Mary Gordon
Director
William Beaudine
Screenplay
Tim Ryan
Edmond Seward
Gerald Schnitzer
Camera Operator
Edward Kearns
Grip
Harry Lewis