| Musica |
| Ennio Morricone (Music by), Bruno Nicolai (Conducted by)
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| Sceneggiatura |
| Dario Argento (Screenplay by)
|
| Maestro d'armi |
| Bruno Ukmar (Arms adviser)
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| Direttore della fotografia |
| Erico Menczer (Director of photography), Roberto Brega (Camera operator), Renato Mascagni (Assistant camera operators), Antonio De Castel Terlago (Assistant camera operators), Maurizio La Monica (Second assistant operator), Rodolfo Filibotto (Gaffer), Maurizio Micalizzi (Key grip)
|
| Montaggio |
| Franco Fraticelli (Editor), Cesarina Casini (Assistant editor), Sergio Fraticelli (Second assistant editor)
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| Costumi |
| Luca Sabatelli (Mrs. Spaak's dresses are by)
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| Soggetto |
| Dario Argento (Based on a story by), Luigi Collo (Based on a story by), Dardano Sacchetti (ans (Based on a story by))
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| Scenografia |
| Carlo Leva (Art director and wardrobe designer), Romeo Costantini (Assistant set dresser)
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| Costumi |
| Carlo Leva (Art director and wardrobe designer)
|
| Aiuto regista |
| Roberto Pariante (Assistant director)
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| Segretaria di edizione |
| Renata Franceschi (Script girl)
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| Fotografo di scena |
| Firmino Palmieri (Still cameraman - (DIAL))
|
| Truccatore |
| Giuseppe Ferranti (Chief make-up artists), Piero Mecacci (Chief make-up artists), Vincenzo Marchetti (Assistant make-up)
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| Scenografia |
| Franco Pedacchia (Assistant set dresser)
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| Parrucchiere |
| Maura Turchi (Chief hairdresser)
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| Fonico |
| Mario Ronchetti (Mixer), Eugenio Fiore (Boom operator)
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| Effetti speciali |
| Luciano Anzellotti (Sound effects), Luciano Vittori (Titles and optical effects)
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| Produzione |
| Seda Spettacoli (Spa – Rome), Terra Filmkunst (Berlin), Labrador Film (Paris)
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| Produttore |
| Salvatore Argento (produced by), Angelo Iacono (Production manager), Carlo De Marchis (Production assistants), Giuseppe Mangogna (Production assistants), Carlo Du Bois (Production accountant), Roberta Leoni (Secretary)
|
| Regia |
| Dario Argento (Directed by)
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