 | Alberto Sordi als Onofrio Del Grillo |
 | Paolo Stoppa als Papa Pio VII |
 | Caroline Berg als Olimpia |
 | Riccardo Billi als Aronne Piperno |
 | Flavio Bucci als Don Bastiano |
 | Camillo Milli als Segretario del Papa |
 | Cochi Ponzoni als Conte Rambaldo |
 | Marc Porel als Capitano Blanchard |
 | Pietro Tordi als Monsignor Terenzio Del Grillo |
 | Leopoldo Trieste als Padre Sabino |
 | Giorgio Gobbi als Ricciotto |
 | Isabelle Linnartz als Genuflessa |
 | Tommaso Bianco als Amministratore |
 | Marina Confalone als Camilla |
| Elena Fiore als Anita |
| Elena Daskowa Valenzano als Marchesa del Grillo |
| Andrea Bevilacqua als Polpeo |
 | Angela Campanella als Faustina |
 | Isabella De Bernardi als Figlia di Gasperino |
| Gianni Di Pinto als Maruccio |
 | Ettore Geri als High priest who presides over the execution |
| Ivan De Paola |
| Nicola Di Marzio |
 | Jacques Herlin als Rabet |
| Salvatore Iacono als Bargello |
 | Elisa Mainardi als Moglie di Gasperino |
 | Renzo Rinaldi |
| Salvatore Biondo als Monk (uncredited) |
 | Salvatore Borgese als giocatore di carte |
 | Mimmo Poli als Oste |
 | Arnaldo Caivano als Cardinal (uncredited) |
 | Fernando Arcangeli als Prince Marcello di Valmontone (uncredited) |
 | Vezio Natili als Cardinal (uncredited) |
| Salvatore Francofonte als Lawyer (uncredited) |
| Mario Monicelli | Director |
| Nicola Piovani | Original Music Composer |
| Renzo Rossellini | Producer |
| Ruggero Mastroianni | Editor |
| Bernardino Zapponi | Story |
| Sergio D'Offizi | Director of Photography |
| Luciano De Feo | Producer |
| Lorenzo Baraldi | Production Design |
| Gianna Gissi | Costume Design |
| Marco Tamburella | Executive Producer |
| Franco Casati | Production Manager |
| Marc Maurette | Production Manager |
| Giuseppe Auriemma | Production Manager |
| Bruna Parmesan | Co-Costume Designer |
| Massimo Tavazzi | Set Decoration |
| Leonardo Benvenuti | Screenplay |
| Piero De Bernardi | Screenplay |
| Mario Monicelli | Screenplay |
| Tullio Pinelli | Screenplay |
| Alberto Sordi | Screenplay |
| Maarten de Wit | Production Secretary |
| Sergio Bologna | Administration |
| Nestore Baratella | Administration |
| Sandro Tamborra | Camera Operator |
| Enrico Maggi | Assistant Camera |
| Vasco Benucci | Assistant Camera |
| Marco Profeta | Assistant Camera |
| Raoul Settimelli | Assistant Costume Designer |
| Francesco Frigeri | Assistant Production Design |
| Giuseppe Pirrotta | Assistant Production Design |
| Donatella Maiorca | Script Supervisor |
| Giacomo Campiotti | Second Assistant Director |
| Gasperina Marani | Assistant Editor |
| Cecilia Catalucci | Assistant Editor |
| Franco Rufini | Makeup Artist |
| Otello Sisi | Makeup Artist |
| Giancarlo De Leonardis | Hairstylist |
| Corrado Cristofori | Hairstylist |
| Franco Borni | Sound |
| Decio Trani | Boom Operator |
| Sergio Serantoni | Key Grip |
| Eugenio Raimondi | Gaffer |
| Alberto Doni | Sound Mixer |
| Amanzio Todini | First Assistant Director |
| Claudio Valerio | Production Secretary |
| Valentino Signoretti | Unit Manager |
| Bruno Ricci | Unit Manager |
| Leonardo Benvenuti | Story |
| Piero De Bernardi | Story |
| Mario Monicelli | Story |
| Tullio Pinelli | Story |
| Giuseppe Bernardini | Camera Operator |
| Enrico Appetito | Still Photographer |
| Benito Leonardi | Special Effects Technician |
| Renato Marinelli | Foley Artist |
| Enzo Diliberto | Foley Artist |
| Rosanna Landi | Assistant Editor |
