Richard Conte as Exorcist

Françoise Prévost as Barbara

Patrizia Gori as Elena Forti

Jean-Claude Vernè as Piero Forti

Sonia Viviani as Sherry

Elisabeth Tulin as Anna

Mimma Biscardi as Succubus (as Mimma Monticelli)

Franco Garofalo as Leader at the Sabbath

Giuseppe Talarico as Doctor

Filippo Perego as Priest

Giangiacomo Elia as Policeman

Giulio Baraghini as Waiter

Rita Orlando as Waitress

Bruno Di Levrano as Cleric

Franco Lo Cascio as Photographer

Franco Villa as Head physician

Quinto Marziali as Friar

Vittorio Parziali as Friar

Salvatore Baccaro as Man at the Sabbath

Maria Grazia Smaldone as Party Guest (uncredited)