as Pierre Luigi - Photographer
as Dr. Odenheim
as Dr. Rosen
as Head Waiter
as Hugo Bergmann
as Herr Schindler (uncredited)
as Police Chief (uncredited)
as Rossi
as Dr. Schwatzbacher
as Prof. Gruber
as Dr. Schrott
as Paolo Vespucci
as George II
as Doctor Novotny
as Bandleader at Alligator Rally (uncredited)
as Professor Hansen
as Leon Stoltz
as Kublai Khan
as Dr. Hans Tautz
as Carlo Penezzi
as Brodcynsky
as Man with Microscope
as Lochner
as Schlip
as Walter Vogel
as Dr. Fergus
as Mario - Waiter at the Savoy
as Professor
as Schmidt
as Morgue Keeper
as Customer
as Igy Pulitzer
as Professor Topolski
as Tony - Cafe Proprietor
as Brunet
as Mr. Krohn
as Herman
as Schroeder
as Prof. Yuri Dutrov
as Mr. Justin
as Jerome
as Watchmaker / Number Fifty Four
as Astolat
