Jessica Harper
Suzy Bannion
Stefania Casini
Sara
Flavio Bucci
Daniel
Miguel Bosé
Mark
Barbara Magnolfi
Olga
Susanna Javicoli
Sonia
Rudolf Schündler
Prof. Milius
Udo Kier
Dr. Frank Mandel
Alida Valli
Miss Tanner
Joan Bennett
Madame Blanc
Margherita Horowitz
Teacher
Jacopo Mariani
Albert
Fulvio Mingozzi
Taxi Driver
Franca Scagnetti
Cook
Renato Scarpa
Prof. Verdegast
Serafina Scorceletti
2nd Cook
Giuseppe Transocchi
Pavlo
Renata Zamengo
Caroline
Alessandra Capozzi
Dancer
Salvatore Capozzi
Dancer
Diana Ferrara
Dancer
Cristina Latini
Dancer
Alfredo Raino
Dancer
Claudia Zaccari
Dancer
Dario Argento
Narrator (voice) (uncredited)
Giovanni di Bernardo
Police Inspector (uncredited)
Daria Nicolodi
Woman at Airport (uncredited)
Marina Pierro
Figurant (uncredited)
Lela Svasta
Helena Markos (uncredited)