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Nino Manfredi as Cacopardo / Angelo Perfili / Ercole / il voyeur / operaio dei telefoni / Maurizio / Nanni |
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Sylva Koscina as Self |
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Enrico Maria Salerno as Carlo Alberto Ribaudo |
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Nerina Montagnani as Old Farmer |
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Véronique Vendell as Manuela |
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Guido Spadea as Judge Di Lorenzo |
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Daniela Giordano as Luisa |
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Umberto D'Orsi as Federico |
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Marcello Prando as Marcello |
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Luca Sportelli as Colleague of Ercole |
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Lisa Halvorsen as Inge, wife of Maurizio |
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John Karlsen as Psychiatrist |
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Jacques Stany as Male Nurse |
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Jimmy il Fenomeno as Neurotic Patient |
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Lia Tanzi as Naked Announcer |
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Bruno Boschetti as |
| Directing | Dino Risi | Director |
| Writing | Jaja Fiastri | Screenplay |
| Writing | Ruggero Maccari | Screenplay |
| Sound | Armando Trovajoli | Original Music Composer |
| Costume & Make-Up | Ezio Altieri | Costume Design |
| Camera | Alessandro D'Eva | Director of Photography |
| Camera | Erico Menczer | Director of Photography |
| Production | Pio Angeletti | Producer |
| Production | Adriano De Micheli | Producer |
| Editing | Alberto Gallitti | Editor |
| Art | Luciano Ricceri | Production Design |
| Writing | Ruggero Maccari | Story |
| Writing | Dino Risi | Story |
| Writing | Fabio Carpi | Story |
| Writing | Bernardino Zapponi | Story |
| Directing | Renato Rizzuto | First Assistant Director |
| Directing | Rita Agostini | Script Supervisor |
| Directing | Adriano Incrocci | Second Assistant Director |
| Costume & Make-Up | Michele Trimarchi | Makeup Artist |
| Costume & Make-Up | Iolanda Conti | Hairstylist |
| Costume & Make-Up | Rosanna Andreoni | Assistant Costume Designer |
| Editing | Lidia Pascolini | Assistant Editor |
| Camera | Giovanni Ciarlo | Camera Operator |
| Production | Hermes Gallippi | Unit Manager |
| Production | Walter Massi | Accountant |
| Sound | Vittorio Massi | Sound |
| Sound | Ludovico Scardella | Sound |
| Camera | Amerigo Casagrande | Key Grip |
| Lighting | Aldo Carocci | Gaffer |
| Production | Antonio Mazza | Production Manager |