 | Sylva Koscina als Marisa |
 | Cristina Gaïoni als Iris |
 | Valeria Fabrizi als Milena |
 | Marisa Merlini als Bice Petroni |
 | Ernesto Calindri als Parodi |
 | Philippe Noiret als Bellini |
 | Franco Franchi als Franco - Nightwatchman #1 |
 | Ciccio Ingrassia als Ciccio - Nightwatchman #2 |
 | Nino Taranto als Professor Gaspare Petroni |
 | Laura Adani als Mrs. Parodi |
 | Luigi Pavese als Manzini |
 | Louis Seigner als Cipriano Paoloni - the President |
 | Gianni Bonagura als Cerrocchi |
| Nello Ascoli |
| Marisa Quattrini |
 | Nino Terzo als Brigadiere Calascione |
 | Bruno Scipioni als Hotel Doorman |
 | Mario Frera als Policeman who arrests Petroni |
| Francesco Sormano |
| Carla Morosini |
| Augusto Pescarini als (as Augusto Pesarini) |
| Marcello Simoni |
| Enrica Caperchi |
| Consalvo Dell'Arti als Hotel Receptionist |
| Lucio Fulci | Director |
| Italo De Tuddo | Screenplay |
| Oreste Biancoli | Screenplay |
| Ermanno Donati | Producer |
| Luigi Carpentieri | Producer |
| Vittorio Metz | Screenplay |
| Antoinette Pellevant | Screenplay |
| Coriolano Gori | Original Music Composer |
| Coriolano Gori | Conductor |
| Guglielmo Mancori | Director of Photography |
| Piero Donati | Production Manager |
| Piero Filippone | Production Design |
| Franco Fumagalli | Set Decoration |
| Ornella Micheli | Editor |
| Lucio Trentini | Unit Manager |
| Giovanni Fago | First Assistant Director |
| Stefano Rolla | Second Assistant Director |
| Franca Carotenuto | Script Supervisor |
| Mario Sbrenna | Camera Operator |
| Franco Groppioni | Sound |
| Euclide Santoli | Makeup Artist |
| Aurelio Crugnola | Costume Design |
