Tráiler
Reparto
Leo G. Carroll
Dr. Murchison
Victor Kilian
Sheriff (uncredited)
Teddy Infuhr
John Ballantine's Brother (uncredited)
Gregory Peck
John Ballantine
Jacqueline deWit
Nurse (uncredited)
Edward Fielding
Dr. Anthony Edwardes (uncredited)
Rhonda Fleming
Mary Carmichael
Bill Goodwin
House Detective
Constance Purdy
Dr. Brulov's Housekeeper (uncredited)
Paul Harvey
Dr. Hanish
Addison Richards
Police Captain (uncredited)
Jean Acker
Matron (uncredited)
George Meader
Hallett - Railroad Clerk (uncredited)
Erskine Sanford
Dr. Galt (uncredited)
John Emery
Dr. Fleurot
Norman Lloyd
Mr. Garmes
Regis Toomey
Det. Sgt. Gillespie
Alfred Hitchcock
Man Leaving Elevator (uncredited)
Ingrid Bergman
Dr. Constance Petersen
Donald Curtis
Harry
Wallace Ford
Stranger in Hotel Lobby
Art Baker
Det. Lt. Cooley
Irving Bacon
Railway Gateman (uncredited)
Matt Moore
Policeman at Train Station (uncredited)
Mijaíl Chéjov
Dr. Alexander Brulov
Steven Geray
Dr. Graff
Dave Willock
Bellboy (uncredited)