as Prof. Leverrin
as Kalador (uncredited)
as Prof. Eugene Dubois (uncredited)
as Art Dealer
as Trubiev
as Xenobian
as Italian Passenger (uncredited)
as Stefan
as The Count
as Mr. Wheeler
as Doctor Bruno
as Klacken
as Lebrun
as Vinson - Spy Henchman
as Vachek
