 | Donald Sutherland als Giacomo Casanova |
 | Tina Aumont als Henriette |
 | Cicely Browne als Madame D'Urfé |
 | Carmen Scarpitta als Madame Charpillon |
| Clara Algranti als Marcolina |
| Daniela Gatti als Giselda |
 | Margareth Clémenti als Sister Maddalena |
| Mario Cencelli als Moebius |
 | Diane Kurys als Madame Charpillon |
 | Mary Marquet als Casanova's Mother |
 | Olimpia Carlisi als Isabella |
 | Silvana Fusacchia als Sorella di Isabella |
 | Chesty Morgan als Barberina |
| Leda Lojodice als Bambola meccanica |
| Sandra Elaine Allen als Angelina |
 | Clarissa Mary Roll als Anna Maria |
 | Daniel Emilfork als Marquis Du Bois |
 | Luigi Zerbinati als Papa |
| Hans van den Hoek |
 | Dudley Sutton als Duca di Wuertemberg |
 | John Karlsen als Lord Talou |
 | Reggie Nalder als Faulkircher |
 | Maria Mascarielli als Dinner guest |
 | Mirko Baiocchi als (uncredited) |
 | Nicholas Smith als Casanova's Brother |
| Federico Fellini | Screenplay |
| Federico Fellini | Director |
| Bernardino Zapponi | Screenplay |
| Alberto Grimaldi | Producer |
| Ruggero Mastroianni | Editor |
| Nino Rota | Original Music Composer |
| Giuseppe Rotunno | Director of Photography |
| Danilo Donati | Costume Design |
| Giacomo Casanova | Novel |
| Danilo Donati | Production Design |
| Carlo Savina | Conductor |
| Giorgio Giovannini | Set Designer |
| Giantito Burchiellaro | Set Designer |
| Massimo Antonello Geleng | Assistant Production Design |
| Maurizio Mein | First Assistant Director |
| Liliana Betti | Second Assistant Director |
| Gérald Morin | Second Assistant Director |
| Norma Giacchero | Script Supervisor |
| Paola Roli | Casting |
| Pierluigi Praturlon | Still Photographer |
| Emilio D'Andria | Set Decoration |
| Gloria Mussetta | Assistant Costume Designer |
| Raimonda Gaetani | Assistant Costume Designer |
| Rita Giacchero | Assistant Costume Designer |
| Adriano Pischiutta | Visual Effects |
| Rino Carboni | Makeup Department Head |
| Giannetto De Rossi | Makeup Artist |
| Fabrizio Sforza | Makeup Artist |
| Gabriella Borzelli | Hairstylist |
| Alessandro von Norman | Production Assistant |
| Mario Di Biase | Production Assistant |
| Lamberto Pippia | Production Manager |
| Adriana Olasio | Assistant Editor |
| Marcello Olasio | Assistant Editor |
| Ugo De Rossi | Assistant Editor |
| Fausto Ancillai | Sound Mixer |
| Giorgio Morra | Line Producer |
| Alessandro Gori | Unit Manager |
| Gilberto Scarpellini | Unit Manager |
| Fernando Rossi | Unit Manager |
