Mimsy Farmer
— Simona Sanna
Barry Primus
— Father Paul Lenox
Ray Lovelock
— Riccardo
Carlo Cataneo
— Lello Sanna
Angela Goodwin
— Danielle
Gaby Wagner
— Betty Lenox
Massimo Serato
— Gianni Sanna
Ernesto Colli
— Ivo
Leonardo Severini
— Caretaker
Eleonora Morana
— Eleonora
Antonio Casale
— Inspector Silvestri
Giovanni Di Benedetto
— Professor Mari
Pier Giovanni Anchisi
— Archivist at Criminal Museum (as Piero Anchisi)
Maria Pia Attanasio
— Aunt Elvira
Sergio Sinceri
— Doctor
Pupino Samonà
— Doctor with beard
Bruno Alias
— Man in Restaurant (uncredited)
Massimo Ciprari
— Audience Watching Car Race (uncredited)
Luciano Foti
— Painter in Casino (uncredited)
Cindy Girling
— Blonde Corpse (uncredited)
Margherita Horowitz
— American Tourist (uncredited)
Barbara Lay
— Suicidal woman in the bathroom (uncredited)
Carla Mancini
— Nurse (uncredited)
Giuseppe Marrocco
— Man at Casino (uncredited)
Giulio Massimini
— Waiter (uncredited)
Franco Moruzzi
— Bystander (uncredited)
Enrico Palombini
— Pool Attendant (uncredited)
Michele Starck
— Corpse (uncredited)
Alessandra Vazzoler
— Fat Corpse (uncredited)
Sandra Wolff
— American Tourist (uncredited)