character - Old Man on Train (uncredited)

character - Dr. Murton

character - Duval

character - Prof. Ludwig Weiss

character - Winkler

character - Scientist (uncredited)

character - Lhama

character - Karl Kopek

character - Papa Moreau

character - Prof. Leon Dushenko

character - Prof. Pal Kudnic

character - Vittorio Miranda

character - Otto

character - Manager of Teatro La Fenice

character - Professor Franz Menzel

character - Joseph

character - Prof. Gollner

character - President of the Medical Society (uncredited)

character - Pieter Sluys

character - Dirk Brak