Ingrid Bergman

Dr. Constance Petersen

Gregory Peck

John Ballantine

Leo G. Carroll

Dr. Murchison

Michael Chekhov

Dr. Alexander Brulov

John Emery

Dr. Fleurot

Steven Geray

Dr. Graff

Paul Harvey

Dr. Hanish

Erskine Sanford

Dr. Galt (uncredited)

Norman Lloyd

Mr. Garmes

Donald Curtis

Harry

Rhonda Fleming

Mary Carmichael

Bill Goodwin

House detective

Art Baker

Det. Lt. Cooley

Regis Toomey

Det. Sgt. Gillespie

Wallace Ford

Hotel masher

Jean Acker

Matron (uncredited)

Irving Bacon

Railway Gateman (uncredited)

Richard Bartell

Ticket Taker (uncredited)

Harry Brown

Gateman (uncredited)

Joel Davis

John Ballantine as a Boy (uncredited)

Jacqueline deWit

Nurse (uncredited)

Edward Fielding

Dr. Anthony Edwardes (uncredited)

Alfred Hitchcock

Man Leaving Elevator (uncredited)

Teddy Infuhr

John Ballantine's Brother (uncredited)

Victor Kilian

Sheriff (uncredited)

George Meader

Hallett - Railroad Clerk (uncredited)

Matt Moore

Policeman at Train Station (uncredited)

Constance Purdy

Dr. Brulov's Housekeeper (uncredited)

Addison Richards

Police Captain (uncredited)

Janet Scott

Norma Cramer (uncredited)

Clarence Straight

Secretary at Police Station (uncredited)

Dave Willock

Bellboy (uncredited)

George Barnes

Director of Photography

James Basevi

Art Direction

Ben Hecht

Screenplay

Miklós Rózsa

Original Music Composer

David O. Selznick

Producer

Alfred Hitchcock

Director

Charles Barton

Second Unit Director

Emile Kuri

Interior Designer

Arthur Johns

Sound

Lowell J. Farrell

Assistant Director

Hilary St George Saunders

Novel

Richard DeWeese

Sound Recordist

John Palmer

Novel

Richard Johnston

Production Manager

John Ewing

Assistant Art Director

Jack Cosgrove

Special Effects

Fred Ahern

Unit Manager

Angus MacPhail

Screenplay

Salvador Dalí

Art Direction

Clarence Slifer

Special Effects