Slip Mahoney

Leo Gorcey

Sach Jones

Huntz Hall

Chuck

David Gorcey

Professor

John Harmon

Samson

Michael Ross

Verna

Lynn Davies

Bunny (as Beverlee Crane)

Beverly Crane

Tracy

Karen Randle

Mr. Jennings

Stanley Andrews

First Dowager

Florence Auer

Second Dowager

Constance Purdy

Joanie Marshall

Adele Jergens

Gabe Moreno

Gabriel Dell

Champ Fallon

Harry Lewis

John Zero "Dynamite" Bacchuss

Murray Alper

Louie Dumbrowski

Bernard Gorcey

Sarah Dumbrowski

Jody Gilbert

Whitey

William Benedict

Butch

Buddy Gorman

Director

William Beaudine

Producer

Jan Grippo

Director of Photography

Marcel Le Picard

Editor

William Austin

Art Direction

Dave Milton

Set Decoration

Raymond Boltz Jr.

Screenplay

Charles R. Marion

Supervising Editor

Otho Lovering

Production Supervisor

Allen K. Wood

Sound Recordist

Dean Spencer

Music Director

Edward J. Kay

Script Supervisor

Ilona Vas