Obsada:

• Ingrid Bergman Dr. Constance Petersen
• Gregory Peck John Ballantine aka Dr. Anthony Edwardes
• Michael Chekhov Dr. Alexander 'Alex' Brulov
• Leo G. Carroll Dr. Murchison
• Rhonda Fleming Mary Carmichael
• John Emery Dr. Fleurot
• Norman Lloyd Mr. Garmes
• Bill Goodwin House detective
• Steven Geray Dr. Graff
• Donald Curtis Harry
• Wallace Ford Stranger in Hotel Lobby
• Art Baker Det. Lt. Cooley
• Regis Toomey Det. Sgt. Gillespie
• Paul Harvey Dr. Hanish
• Jean Acker Matron
• Irving Bacon Railway gateman
• Richard Bartell Ticket taker
• Harry Brown Gateman
• Joel Davis John Ballantine as a boy
• Edward Fielding Dr. Anthony Edwardes
• James Flavin Bit Role
• Alfred Hitchcock Man leaving elevator
• Teddy Infuhr John Ballantine's brother
• Victor Kilian Sheriff
• George Meader Hallett, railroad clerk
• Matt Moore Policeman at train station
• Constance Purdy Dr. Brulov's housekeeper
• Addison Richards Police captain
• Erskine Sanford Dr. Galt
• Janet Scott Norma Cramer
• Clarence Straight Secretary at police station
• Dave Willock Bellboy
• Jacqueline deWit Bit Role