as Dottor Ian / Joan Albert Walner
as Himself
as Pater Petrosinus
as Steffen Seibert
as David Noris
as Ian O'Hara
as Gabriel Yanis
as Prince Lichnowsky
as Dr. Müller
as Peter Berner
as Rafael Graf von Arensberg
as Harry Ridgeman
as Daniel Karlsberg
as Stefan Baumgarten
Writer
as Stefan Baumgarten
as Dolmetscher
as Bademeister Fritz