as Wilhelm

as Dr. Lubbeck

as Mr. Novak (uncredited)

as Siegfried

as Doctor

as Mr. Otto

as Jean Lamarte

as Herman Miller

as The German

as Dr. Grazlich (Doc Powers' Partner)

as Dr. Mueller

as Aldo Von Metz

as Grand Duke Otto

as Dr. Anton Marek

as Professor Berdorff

as Gustav Muller

as Herman Bauer, bugomaster

as Mr. Steinach

as Herman Felsburg

as Louis

as Dr. Szicki

as Peter Van Tyne

as Popsy Lorenz

as Dir. Rohrbach

as Major Domo

as Dr. Gerhardt

as Binns

as Graub

as Pichler

as Riederer, Amtshauptmann von St. Vigil

as Papa Julius Steelman

as Mr. Leuchtag (uncredited)

as Hotelier Brunn

as Baron Kiesel

as Henry 'Pop' Gehrig

as Pastor

as Franz Polgar

as Owner of Puppet Show

as Dr. Fritz Heine

as Carl Baumann

as Dr. Schickel

as Li Yoseph

as Bratfisch

as Personalchef Klapper

as Vetter, der Pfarrer von Sankt Jakob

as Papa Svoboda

as Caesar

as Capt. Angst

as Arbeiter

as Brock (uncredited)

as Dr. Breithaut

as Zuschauer

as Freund

as Der Varieté-Agent

as Theaterdirektor

as Generaldirektor Leon

as Dr. Schmidt

as Professor Träumer

as Valentin Rainer

as Livius Heintze, Unterwäschefabrikant

as Der Hoteldirektor

as Peter

as Hotel Manager

as Capt. Ziemer (uncredited)

as Herr Schultz the Innsbruck Forger (Uncredited)

as Professor Berger

as Otto

as German Piano Accompanist (uncredited)

as Haslinger

as Mr. Puft

as School Teacher (as Ludwig Stossel)

as Underground Leader