Old Man on Train (uncredited)
Dr. Murton
Prof. Ludwig Weiss
Winkler
Scientist (uncredited)
Karl Kopek
Papa Moreau
Prof. Leon Dushenko
Prof. Pal Kudnic
Vittorio Miranda
Manager of Teatro La Fenice
Professor Franz Menzel
Joseph
Prof. Gollner
President of the Medical Society (uncredited)
Pieter Sluys
Dirk Brak
