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