Roland Wybenga
Professor Alan Whitmore
Claudio Capone
Professor Alan Whitmore (voice)
Paola Rinaldi
Genevieve Weiss
Margareta von Krauss
Celia Roth
Claudia Muzii
Maria
William Berger
Mysterious Man
Stéphane Audran
Mrs. Kuhn
Vanna Busoni
Signora Kuhn (voice)
Valeriano Santinelli
Massimiliano Pavone
Arnaldo Dell'Acqua
Polgár Móricz
László Sipos
Bob Holton
Bill Bolender
Chancellor Hubbard
