Trailer
Cast
Nydia Westman
Briggs (uncredited)
Walter Kingsford
Sir Francis Stevens
Ynez Seabury
Celeste (uncredited)
Robert Graves
Gendarme (uncredited)
Boris Karloff
Dr. Janos Rukh
Lugosi Béla
Dr. Felix Benet
Frances Drake
Diana Rukh
Violet Kemble Cooper
Mother Rukh
Beulah Bondi
Lady Arabella Stevens
Frank Reicher
Professor Meiklejohn
Georges Renavent
Chief of the Surete
Paul McAllister
Papa LaCosta (uncredited)
Frank Lawton
Ronald Drake
Paul Weigel
Monsieur Noyer
May Beatty
Mme. LeGrand (uncredited)