Leo Gorcey Slip Mahoney

Huntz Hall Horace Debussy 'Sach' Jones

G. Pat Collins Bat Armstrong

Effie Laird Ma Armstrong

Bernard Gorcey Louie Dumbrowsky

William Benedict Whitey, Bowery Boy

David Gorcey Bowery Boy #4, dark-haired

Buddy Gorman Bowery Boy #5, slender

Joseph Crehan Warden Burnside

Richard Benedict Skeets O'Neil

Frank Marlowe Ma's Clean-shaven Henchman

Eddie Foster Ma's Henchman with Mustache

Gabriel Dell Gabriel 'Gabe' Moreno

Lyn Thomas Shirley O'Brien, Gabe's Secretary

Eddie Gribbon 'Hobo' Barton, convict

Paul Dubov Pretty Boy Gleason

Joe Turkel Benny the Blood (as Joseph Turkel)

George Chandler 'Squirrely' Davis, convict

Jonathan Hale The Judge

Edward Gargan Officer Murphy

William Haade Dialogue Cop Arresting the Boys

Harry Strang Solitary Confinement Guard

Lyle Talbot Prison Yard Guard

Stanley Blystone Captain of the Guards

Tom Kennedy Third Convict Calling Out from Cell