 | Vittorio Gassman als Pietro Breccia |
 | Ann-Margret als Maggie |
 | Oreste Lionello als Puccio |
 | Liana Orfei als Albertina |
 | Yvonne Sanson als Carla Bagni |
 | Fiorenzo Fiorentini als Luigi |
 | Enzo Robutti als Alberto |
 | Geoffrey Copleston als Bagni |
 | Evi Rigano als Tiziana Breccia |
| Dino Curcio als Menzi |
 | Franco Gulà als Edoardo |
| Giuseppe Lauricella als Gino |
| Renato Marzano als Paolo |
| Tiziano Montagni als Federico |
| Giuseppe Altamurra |
| Egidio Casolari |
 | Bruna Cealti |
| Maria Grazia Marescalchi |
| Anita Saxe als Claudia |
 | Giovanni Ivan Scratuglia als Giuseppe |
| Harry Stuart als Vittorio |
 | Carmen Villani |
 | Gianni Dei als Dancing boy (uncredited) |
| Julie Fair als Hippie Girl (uncredited) |
 | Ettore Geri als Car driver (uncredited) |
 | Giuseppe Marrocco als Colleague of Pietro (uncredited) |
| Oscar Sciamanna als Car driver (uncredited) |
 | Maria Tedeschi als Colleague of Pietro (uncredited) |
| Dino Risi | Director |
| Ruggero Maccari | Story |
| Dino Risi | Story |
| Ettore Scola | Story |
| Mario Cecchi Gori | Producer |
| Alessandro D'Eva | Director of Photography |
| Marcello Malvestito | Editor |
| Franco Carretti | Costume Design |
| Franco Corridoni | Makeup Artist |
| Mario Morigi | Sound Mixer |
| Ettore Catalucci | Special Effects |
| Lidia Pascolini | Assistant Editor |
| Ettore Scola | Screenplay |
| Ruggero Maccari | Screenplay |
| Armando Trovajoli | Original Music Composer |
| Piero Poletto | Production Design |
| Giovanni Natalucci | Assistant Production Design |
| Carmen Pericolo | Seamstress |
| Francesco Massaro | First Assistant Director |
| Maria Teresa Corridoni | Hairstylist |
| Giovanni Ciarlo | Camera Operator |
| Ilde Muscio | Script Supervisor |
| Renzo Genta | Second Assistant Director |
| Mario D'Alessio | Unit Manager |
| Bruno Altissimi | Accountant |
| Mario Della Torre | Production Secretary |
| Giuliano Grasselli | Assistant Camera |
| Vittorio Massi | Sound |
| Pio Angeletti | Line Producer |
