Stanley Ridges

Prof. George Kingsley / Red Cannon

Boris Karloff

Dr. Ernest Sovac

Bela Lugosi

Eric Marnay

Anne Nagel

Sunny Rogers

Anne Gwynne

Jean Sovac

Virginia Brissac

Mrs. Margaret Kingsley

Edmund MacDonald

Frank Miller

Paul Fix

William Kane

Murray Alper

Bellhop

Jack Mulhall

Bartender

Raymond Bailey

Louis Devore

Joe King

Chief of Police

John Kelly

Taxi Driver

Jessie Arnold

Nurse

Elfriede Borodin

2nd Nurse

Tommy Conlon

Student

Franco Corsaro

Club Maitre d' (uncredited)

James Craig

Reporter Ernst Gives Notes To

Kernan Cripps

Detective

Eddie Dunn

Det. Farnow

Edward Earle

Detective

Harry Hayden

Prison Doctor

Frank Jaquet

Fat Man in Bar

Ellen Lowe

Midtown Hotel Maid

Jerry Marlowe

Midtown Hotel Clerk

Wallace Reid Jr.

Student

William Ruhl

G-Man

Frank Sheridan

Prison Chaplain

Edwin Stanley

Dr. Warner

Harry Tenbrook

Cabbie

Emmett Vogan

Det. Carpenter

Russell Wade

Student

Dave Willock

Student

Victor Zimmerman

G-Man

Robert Morgan

Hotel Associate

Arthur Lubin

Director

Curt Siodmak

Guión, Guión Adaptado

Eric Taylor

Guión, Guión Adaptado

Edmund L. Hartmann

Guión

Elwood Bredell

Director de Fotografía

Hans J. Salter

Compositor de la Música Original, Music Director

Frank Skinner

Compositor de la Música Original

Charles Carroll

Sound

Universal Pictures

Compañía de Produccion

Burt Kelly

Productor Asociado

Jack Pierce

Maquilladora

Vera West

Diseño de Vestuario

Philip Cahn

Editor

Jack Otterson

Dirección Artística