Dr. Constance Petersen

Ingrid Bergman

Acting

John Ballantine

Gregory Peck

Acting

Dr. Murchison

Leo G. Carroll

Acting

Dr. Alexander Brulov

Michael Chekhov

Acting

Dr. Fleurot

John Emery

Acting

Dr. Graff

Steven Geray

Acting

Dr. Hanish

Paul Harvey

Acting

Dr. Galt (uncredited)

Erskine Sanford

Acting

Mr. Garmes

Norman Lloyd

Acting

Harry

Donald Curtis

Acting

Mary Carmichael

Rhonda Fleming

Acting

House detective

Bill Goodwin

Acting

Det. Lt. Cooley

Art Baker

Acting

Det. Sgt. Gillespie

Regis Toomey

Acting

Hotel masher

Wallace Ford

Acting

Matron (uncredited)

Jean Acker

Acting

Railway Gateman (uncredited)

Irving Bacon

Acting

Ticket Taker (uncredited)

Richard Bartell

Acting

Gateman (uncredited)

Harry Brown

Acting

John Ballantine as a Boy (uncredited)

Joel Davis

Acting

Nurse (uncredited)

Jacqueline deWit

Acting

Dr. Anthony Edwardes (uncredited)

Edward Fielding

Acting

Man Leaving Elevator (uncredited)

Alfred Hitchcock

Directing

John Ballantine's Brother (uncredited)

Teddy Infuhr

Acting

Sheriff (uncredited)

Victor Kilian

Acting

Hallett - Railroad Clerk (uncredited)

George Meader

Acting

Policeman at Train Station (uncredited)

Matt Moore

Acting

Dr. Brulov's Housekeeper (uncredited)

Constance Purdy

Acting

Police Captain (uncredited)

Addison Richards

Acting

Norma Cramer (uncredited)

Janet Scott

Acting

Secretary at Police Station (uncredited)

Clarence Straight

Acting

Bellboy (uncredited)

Dave Willock

Acting