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