Russian Delegate
Professor Winterhalter
Prof. Werner von Koenig
The Burgomaster (archive footage)
Conductor Schultz (1 episode)
Eric Von Bissell (1 episode)
Professor Lieberschmit (1 episode)
Van Coot (1 episode)
German Guard
Hammacher (uncredited)
Count von Droste Schattenburg (voice) (uncredited)
Baron Elston Carteblanche
Franz Schuldorf (1 episode)
Tug Captain
Dr. Haegendorff (1 episode)
Capt. Steeger (1 episode)
Manager
King Rinko
Spectacle Man
Fritz Schlitz
Landlord (uncredited)
Dr. Emile Egelhofer
W. Kranz
Schultz
Sgt. Johann Sebastian Schulz
Cyrus Kraft
General Ivan Vorashilov
Menkie (segment "The Gift of the Magi") (uncredited)
Gapeaux
Jericho Schlosser
Hugo Wolfgang Ulrich
Dr. Zwieback
Arthur Dinkel
Count Alexis
Professor Boris Riminoffsky
Wilowski
Count Pfefferman / Heinrich Stubel
Ignatz Tsimmis
Dr. Gurke
Mme. Irene
General Ronsky
Burgomeister Hussman
Kuzma
General von Hindenburg
Mr. Beckstein
Louis Bouriette
Ambassador
Joe Flugelman
Dr. Herman Holger
Sergeant
Jarubi
Preuss
Dr. Dietrich
Heinrich, Spy Leader
Dr. Alex Dubroc
Col. Ehrhardt
Dirk Van Hoorten
Self (archive footage) (uncredited)
John Jacob Astor
Franz von Bushmaster
Professor Herman Von Reiter
Dr. Wuthering
Hoffman the Great
Kafka (as Sig Rumann)
Dr. Simms (as Sig Rumann)
Ammers
Mr. Schomberg
Emil Von Hofer
Herr Schlick
Newmann
Herr Protz
Van Cleve
Dr. Hans Wolfert
Dr. Schmidt
Comrade Iranoff
Poppa Ingleborg
Psychiatrist
Wertheimer
Sergeant Pellerin
Roger Heath
Anatole Primerose
Mr. Bold
Hutch Rellin
Colonel Tchernov
Dr. Emil Eggelhoffer
Police Captain
Lt. Col. Gottfried Hollen
Prime Minister
General Montero
Nicolas Marloff
Dr. Leopold X. Steinberg
Dr. Taggert
John B. Rudd
Fanchon (as Sig Rumann)
Durand (as Sig Rumann)
Herr Hanfstangel
Commandante Sebastian Golle
Steindorf
Hans Muller
Gottlieb
Blacksmith
Matt Conklin
Mr. Jan Novak
Doctor
Brogard
Hans Hansen (as Siegfried Rumann)
Baron von Gerhardt (as Siegfried Rumann)
Bailiff
Bridge player (Unbilled)