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