Cast
David Hemmings
Marcus Daly
Daria Nicolodi
Gianna Brezzi
Gabriele Lavia
Carlo
Macha Méril
Helga Ulmann
Eros Pagni
Supt. Calcabrini
Giuliana Calandra
Amanda Righetti
Piero Mazzinghi
Bardi
Glauco Mauri
Prof. Giordani
Clara Calamai
Martha Manganiello
Aldo Bonamano
Carlo's Father
Crew
Bernardino Zapponi
Screenplay
Dario Argento
Director
Dario Argento
Writer
Claudio Simonetti
Original Music Composer
Giorgio Gaslini
Original Music Composer
Claudio Argento
Executive Producer
Salvatore Argento
Producer
Armando Mannini
Set Decoration
Franco Fraticelli
Editor
Stefano Rolla
Assistant Director
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