Edward Norris

as Count Jacob (uncredited)

as Man Outside Theatre of Horror (Uncredited)

as Joe Marsh

as Roulette Dealer

as Mapes

as Jim Vincent

as Professor Robert Perry Hale

as Dr. Morgenroth

as Dan Blackmore

as Jack Marsden

as Robert LaCoste

as Noyes, Gang Driver

as Suitor (uncredited)

as Harmon

as Ed Newton

as Sgt. Roy Henderson

as Philip Bennett

as Marcel Vigneaux

as Sgt. Cliff Hart

as Dr. Frank Blake

as Paavo Luuki

as Man on Phone at Party (uncredited)

as Igor Borio

as Eddie Nelson

as Speed Allen

as Jimmy McDonald, Evening Telegram Reporter

as Ralph Wilson

as Robert Kirby

as Frank Richards

as Clarke - Upper Classman (uncredited)

as Joe Rinelli / Leo Rinelli

as William Ames Crane

as Johnny Gray

as Wilbur

as Warren Richards

as Jess Hilton

as Carl Lang

as Ramon

as Steve Dexter

as Clay Hartley, Jr.

as Dr. Barili

as Sleepy (Uncredited)

as Hal Howard

as Stewart Cole

as Capt. Francois Bardinet

as Joe Martin

as William Arbuckle

as Bob Elliot

as Steve Wilson

as Lt. Allan Scott

as Ferdie Fisher

as Lester Bennet

as Chet Madden

as Ramon Bustamante

as Tom Bennett

as Mario, club manager

as Steve Carroll

as Frankie Barber

as Tom

as Guido Romandi

as Louie Peronni

as Bob Elliott

as Jimmy

as Jeffrey Wingate

as Vance

as Eddie Miller

as Clinker

as Paul Lautrec

as Orderly (uncredited)

as Doc Larry Taylor

as Abbott

as Petty Haynes

as Andy Emerson

as Charles Henry Holmes Jr.

as Self