
The second of the three film versions of the E. Phillips Oppenheim espionage thriller set largely in an old dark house where a tremulous wife wonders if her husband is really his double, a dastardly German spy.

as Sir Everard Dominey / Baron Leopold von Ragostein

as Eleanor Dominey

as Princess Stephanie Elderstrom

as Seaman

as Eddie Pelham

as Mrs. Unthank

as Middleton

as Dr. Harrison

as Duchess Caroline

as Duke Henry

as Sir Ivan Brunn

as Mangan

as Sir Gerald Hume

as Dr. Trenk

as Perkins

as Middleton's Daughter (uncredited)

as Duval (uncredited)

as Maid (uncredited)

as Lady Hume (uncredited)

as Bartender (uncredited)

as Villager (uncredited)

as Villager (uncredited)

as Villager (uncredited)

as Waiter (uncredited)

as Roger Unthank (uncredited)

as English Farmer (uncredited)

as English Farmer (uncredited)

as Wolff (uncredited)

as Hugo (uncredited)

as German (uncredited)

as Army Officer (uncredited)

as Lord Allison (uncredited)

as Chauffeur (uncredited)