Erwin Kalser

as Raymond Poincaré

as Geneva Man

as Jan Dorchik

as Dr. Brenner

as Stage Director

as Dr. Klauber

as German Businessman (uncredited)

as Mr. Hauen

as Mr. Sandor

as Professor Kent

as Otto Kuhn

as Dr. Franken

as Klaus

as Hotel Barkeeper (uncredited)

as Dr. Adolph Behrens

as Herr Barthel

as Redner in der Irrenanstalt

as Dr. Zinker

as Regisseur

as Dr. O'Meara

as Zar