Trailer
Cast
Eleonora Giorgi
Sara
Leopoldo Mastelloni
John, the Butler
Ettore Martini
Burning Building Cop (uncredited)
Corinne Dunne
Tenant in New York Building (uncredited)
Filippo Perego
Tenant in New York Building (uncredited)
Irene Miracle
Rose Elliot
Veronica Lazăr
Nurse
Paolo Paoloni
Music Teacher
Sacha Pitoëff
Kazanian
Feodor Chaliapin Jr.
Professor Arnold / Dr. Varelli
Ania Pieroni
Musical Student
Dario Argento
Narrator (voice) (uncredited)
Leigh McCloskey
Mark Elliot
Daria Nicolodi
Elise Stallone Van Adler
Alida Valli
Carol
Gabriele Lavia
Carlo
Fulvio Mingozzi
Cabdriver