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