Full Credits
27 members

Bela Lugosi
Prof. Frederick Brenner aka Karl Wagner

John Archer
Richard Dennison

Wanda McKay
Judy Malvern

Tom Neal
Frankie Mills

Vince Barnett
Charley
Anna Hope
Mrs. Brenner

John Berkes
Fingers Dolan

J. Farrell MacDonald
Capt. Mitchell

Dave O'Brien
Det. Pete Crawford
Lucille Vance
Mrs. Malvern

Lew Kelly
Doc Brooks

Wheeler Oakman
"Trigger" Stratton
Ray Miller
The Big Tramp

George Eldredge
Det. Thompson (uncredited)

Eddie Kane
Police Chief Martin (uncredited)

Harry 'Snub' Pollard
Knocked-out Motorist (uncredited)

Bernard Gorcey
Shopkeeper (uncredited)

Willy Castello
Jeweler (uncredited)

Bob Reeves
Henchman (unconfirmed) (uncredited)

Walter McGrail
Coroner (uncredited)

Jack Kenney
Usher (uncredited)
Ralph Littlefield
Cards-player Tramp (uncredited)
Pat Costello
Tramp questioned by Richard (uncredited)

Eddie Hall
Tramp playing checkers at 'Friendly Mission' (uncredited)

Theodore Lorch
Tramp Playing Checkers at Friendly Mission (uncredited)

Victor Adamson
Tramp (uncredited)
Bobby Stone
Newsboy (uncredited)
12 members
Wallace Fox
Director
Arthur Hammond
Assistant Director
Gerald Schnitzer
Screenplay
Sam Robins
Original Story
Sam Katzman
Producer
Jack Dietz
Producer
Barney A. Sarecky
Producer
Mack Stengler
Director of Photography
Glen Glenn
Sound Engineer
Edward J. Kay
Original Music Composer
Dave Milton
Art Direction
Carl Pierson
Editor