Mimsy Farmer as Simona Sanna

Barry Primus as Father Paul Lenox

Ray Lovelock as Riccardo

Carlo Cataneo as Lello Sanna

Angela Goodwin as Danielle

Gaby Wagner as Betty Lenox

Massimo Serato as Gianni Sanna

Ernesto Colli as Ivo

Leonardo Severini as Caretaker

Eleonora Morana as Eleonora

Antonio Casale as Inspector Silvestri

Giovanni Di Benedetto as Professor Mari

Pier Giovanni Anchisi as Archivist at Criminal Museum (as Piero Anchisi)

Maria Pia Attanasio as Aunt Elvira

Sergio Sinceri as Doctor

Pupino Samonà as Doctor with beard

Bruno Alias as Man in Restaurant (uncredited)

Massimo Ciprari as Audience Watching Car Race (uncredited)

Luciano Foti as Painter in Casino (uncredited)

Cindy Girling as Blonde Corpse (uncredited)

Margherita Horowitz as American Tourist (uncredited)

Barbara Lay as Suicidal woman in the bathroom (uncredited)

Carla Mancini as Nurse (uncredited)

Giuseppe Marrocco as Man at Casino (uncredited)

Giulio Massimini as Waiter (uncredited)

Franco Moruzzi as Bystander (uncredited)

Enrico Palombini as Pool Attendant (uncredited)

Michele Starck as Corpse (uncredited)

Alessandra Vazzoler as Fat Corpse (uncredited)

Sandra Wolff as American Tourist (uncredited)

Luciano Zanussi as Doctor at Autopsy (uncredited)

Maria Grazia Smaldone as Naná (uncredited)