Leo Gorcey

Terence Aloysius 'Slip' Mahoney

Huntz Hall

Sach

Douglass Dumbrille

Dr. Coslow

Bobby Jordan

Bobby

Gabriel Dell

Gabe 'Gabie' Moreno

William Benedict

Whitey (as Billy Benedict)

David Gorcey

Chuck

Tanis Chandler

Mignon

Maurice Cass

Dr. Bender

Vera Lewis

Mrs. Grimm

Charles Middleton

Mr. Stiles

Chester Clute

Brown

Richard Alexander

Ivan

Bernard Gorcey

Louis Xavier 'Louie' Dumbrowski

Charles Millsfield

Dean Pettyboff

Art Miles

Herman the Gorilla (as Arthur Miles)

Tim Ryan

Screenplay

William Beaudine

Director

Edmond Seward

Screenplay

Edward J. Kay

Music Director

William Austin

Editor

Tom Lambert

Sound Recordist

Richard C. Currier

Supervising Film Editor

Harry Ross

Makeup Artist

Jan Grippo

Producer

Harry Neumann

Director of Photography

Glenn Cook

Production Manager