as Mr. Hauen

as Mr. Sandor

as Professor Kent

as Dr. Adolph Behrens

as Dr. O'Meara

as Geneva Man

as Otto Kuhn

as Jan Dorchik

as Dr. Franken

as Hotel Barkeeper (uncredited)

as Dr. Klauber

as Dr. Brenner

as Herr Barthel

as Raymond Poincaré

as Klaus

as Regisseur

as Dr. Zinker

as German Businessman (uncredited)

as Stage Director

as Zar