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