as Prof. Yuri Dutrov

as Police Chief (uncredited)

as Watchmaker / Number Fifty Four

as Herman

as Prof. Gruber

as Head Waiter

as Kublai Khan

as Pierre Luigi - Photographer

as Dr. Schwatzbacher

as Hugo Bergmann

as Schroeder

as Astolat

as Kublai Khan

as Rossi

as Man with Microscope

as Mr. Justin

as Jerome

as Dr. Odenheim

as Dr. Rosen

as Ambrose Solto

as Hendricks

as Dr. Schrott

as Brunet

as Schlip

as Lochner

as Professor Topolski

as Paolo Vespucci

as Bandleader at Alligator Rally (uncredited)

as Igy Pulitzer

as Dr. Fergus

as Brodcynsky

as Papa

as Carlo Penezzi

as Customer

as Herr Schindler (uncredited)

as Leon Stoltz

as Tony - Cafe Proprietor

as George II

as Mario - Waiter at the Savoy

as Dr. Hans Tautz

as Professor

as Postman

as Professor Hansen

as Morgue Keeper

as Walter Vogel

as Schmidt

as Mr. Krohn

as Doctor Novotny