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Ray Milland as Inspector Timpson |
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Dalila Di Lazzaro as Glenda Blythe |
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Michele Placido as Antonio Attolini |
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Mel Ferrer as Professor Henry Douglas |
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Howard Ross as Roy Conner |
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Ramiro Oliveros as Inspector Ramsey |
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Fernando Fernán Gómez as Forensics Detective |
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Antonio Ferrandis as Nottingham |
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Giacomo Assandri as Quint |
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Vanessa Vitale as Quint's Neighbor |
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Mónica Rey as Patricia Clark Dorsey |
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Enzo Staiola as |
| Writing | Flavio Mogherini | Writer |
| Writing | Rafael Sánchez Campoy | Writer |
| Directing | Flavio Mogherini | Director |
| Writing | Flavio Mogherini | Story |
| Writing | Rafael Sánchez Campoy | Story |
| Sound | Riz Ortolani | Original Music Composer |
| Camera | Carlo Carlini | Director of Photography |
