Leo Gorcey
— Terrence 'Slip' Mahoney
Huntz Hall
— Horace Debussy 'Sach' Jones
Betty Caldwell
— Candy McGill
Sheldon Leonard
— Lippy Harris
John Eldredge
— Lullaby Kane
Bernard Gorcey
— Louie
William Benedict
— Whitey (as Billy Benedict)
David Gorcey
— Chuck
Benny Bartlett
— Butch
Gabriel Dell
— Gabe
Donald MacBride
— Police Capt. James Q. Broaderik
Lucien Littlefield
— Tipper
Benny Baker
— Augie Pollack
Ralph Dunn
— Jake 'Cold Deck' Shapiro
Ben Welden
— Benny the Meatball
William Ruhl
— Police Detective Sgt. Ryan
Mike Donovan
— Bank Guard
Stanley Andrews
— Mr. Morgan, Bank President (uncredited)
Wanda McKay
— Virginia
Tom Kennedy
— Officer Rooney
George Eldredge
— IRS Collector