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)