as Sergei Ratov
as Professor Heinrich
as Jacques Rival
as Count von Stammer
as School Principal
as Prof. Franck
as Dr. Sigmund Gottlieb Golden
as Professor Jean Perot
as Dr. Carl Hesser
as Hugo Schroeder
as General Borelski
as Dr. Coutras
as Dr. Ludwig Mather
as Arnold Schmidt
as Dr. Storm
as Van Elst
as Ludwig van Beethoven
as Consul Magnus Barring
as Wilhelm Voight, a Shoemaker
as Dr. Arthur Henning
