Oskar Homolka (August 12, 1898 – January 27, 1978) was an Austrian film and theatre actor. Homolka's strong accent, stocky appearance, bushy eyebrows and Slavic-sounding name led many to believe he was Eastern European or Russian, but he was born in Vienna, Austria-Hungary.
Description above from the Wikipedia article Oskar Homolka, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Christy Christakos
Bert
Janek Cybowski
Father Dimitrius
Pierre Jacquelin
Self
Father
Carl Kaminsky
Carpius
Jan Vander Klaue / Mr A J Keyser
Zoltan Kolas
Prof. Gurkakoff
Field Marshal Kutuzov
Maxim Litvinov
The Commissar
Stryker
Colonel Stok
Jeno Reinitz
James Godfrey
The Doctor
General Golitsyn
Erzieher
Col. Nikita I. Biroshilov
Antro
General Stok
Amtmann
Dr. Brubaker
Van Dam
Detective Schenck Gotz
Dr. Emerich
The Duke ('The Dream')
Dr. Prokosch
Verlac (archive footage)
Dr.Herbert Hirth
Dr. Helmut Von Schulthers
Director Haniel
Fridolin Bortis
Dr. Horner
Inspector Hanaud
André Carno
Krull
Savelic
Lev Pressinger
Racovsky
Inspector Ruff
Ohm Paul Kruger
Uncle Chris
Lanskoi
Urias Hawke
Father
Blackie
Josef Chinik
Engstrand
Self
Gerichtspräsident Grandt
Anton
King
Major Ferdinand Walsin-Esterházy
Sam
Jack
Khrushchev
Dr. Rameau
Krok
Commissar Vasiliev
Anton - Pimp
Joe Lucasta
Desius Heiss
Zekov
Karl Verloc - Her Husband
Capt. Jakob Therbecke
Der Matrose
Sergei Dmitrijewitsch Sasonow
Stan Pulaski
Ricardo Gabiano
Hoofdcommissaris Samson
Ghoul
Andreas (as Oscar Homolka)
Robert Keßler
Zurube