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