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