as Owner of Puppet Show
as Dr. Fritz Heine
as Aldo Von Metz
as Dr. Szicki
as Piano Tuner(1 ep)
as Wilhelm
as Otto Kessler(1 ep)
as Adolph Van Beers(1 ep)
as Mr. Novak (uncredited)
as Mr. Fixit(1 ep)
as Self(1 ep)
as Professor Berger
as Professor(1 ep)
as Herman Felsburg
as Peter Van Tyne
as Grand Duke Otto
as Professor Harnish(1 ep)
as Papa Svoboda
as Major Domo
as Professor Roff(1 ep)
as German Piano Accompanist (uncredited)
as Jonathan Bigby / clock-keeper(1 ep)
as Dr. Snider(1 ep)
as Prof. Müller(1 ep)
as Hotel Manager
as Professor Träumer
as Mr. Steinach
as Peter
as Haslinger
as Dr. Mueller
as The German
as Otto
as Popsy Lorenz
as Siegfried
as School Teacher (as Ludwig Stossel)
as Mr. Puft
as Mr. Otto
as Jean Lamarte
as Carl Baumann
as Binns
as Capt. Ziemer (uncredited)
as Herman Bauer, bugomaster
as Herr Schultz the Innsbruck Forger (Uncredited)
as Papa Julius Steelman
as Mr. Leuchtag (uncredited)
as Underground Leader
as Dr. Schmidt
as Dr. Grazlich (Doc Powers' Partner)
as Dr. Anton Marek
as Henry 'Pop' Gehrig
as Dr. Lubbeck
as Professor Berdorff
as Herman Miller
as Franz Polgar
as Dr. Schickel
as Brock (uncredited)
as Gustav Muller
as Doctor
as Louis
as Fritz Schermer
as Li Yoseph
as Caesar
as Dr. Gerhardt
as Pastor
as Dr. Breithaut
as Capt. Angst
as Vetter, der Pfarrer von Sankt Jakob
as Der Hoteldirektor
as Theaterdirektor
as Pichler
as Generaldirektor Leon
as Arbeiter
as Zuschauer
as Riederer, Amtshauptmann von St. Vigil
as Polizist
as Baron Kiesel
as Hotelier Brunn
as Der Varieté-Agent
as Bratfisch
as Valentin Rainer
as Personalchef Klapper
as Livius Heintze, Unterwäschefabrikant
as Dir. Rohrbach