as Geneva Man
as Professor Kent
as German Businessman (uncredited)
as Mr. Sandor
as Dr. Brenner
as Jan Dorchik
as Dr. Franken
as Dr. Klauber
as Stage Director
as Mr. Hauen
as Hotel Barkeeper (uncredited)
as Dr. Adolph Behrens
as Zar
as Redner in der Irrenanstalt
as Klaus
as Herr Barthel
as Otto Kuhn
as Regisseur
as Dr. Zinker
