 | Martin Potter als Encolpio |
 | Hiram Keller als Ascilto |
 | Max Born als Gitone |
 | Salvo Randone als Eumolpo |
| Mario Romagnoli als Trimalcione |
 | Magali Noël als Fortunata |
 | Capucine als Trifena |
 | Fanfulla als Vernacchio |
 | Gordon Mitchell als Il predone |
 | George Eastman als Minotauro |
 | Carlo Giordana als Il capitano |
 | Donyale Luna als Enotea |
 | Elisa Mainardi als Arianna |
 | Marcella Di Falco als Proconsole |
 | Tanya Lopert als L'imperatore |
| Hylette Adolphe als La schiavetta |
| Joseph Wheeler als Il suicida |
 | Lucía Bosè als La matrona |
| Giuseppe Sanvitale als Abinna |
 | Danika La Loggia als Scintilla |
 | Alain Cuny als Lica |
 | Richard Simmons als Orgy Musician |
| Eugenio Mastropietro als Liberto arricchito |
 | Maria Mascarielli als Theather Group Woman (uncredited) |
 | Dalia Zagni als (uncredited) |
 | Ottaviano Dell'Acqua als (uncredited) |
| Genius |
 | Catharina Dahlin |
 | René Fiorentini als (uncredited) |
 | Nadia Balabine als Party Guest (uncredited) |
 | Alvaro Vitali als Imperatore nella rappresentazione |
| Federico Fellini | Director |
| Giuseppe Rotunno | Director of Photography |
| Andrew Rudin | Original Music Composer |
| Federico Fellini | Screenplay |
| Petronius | Novel |
| Ruggero Mastroianni | Editor |
| Tod Dockstader | Original Music Composer |
| Bernardino Zapponi | Screenplay |
| Alberto Grimaldi | Producer |
| Ilhan Mimaroglu | Original Music Composer |
| Nino Rota | Original Music Composer |
| Rino Carboni | Makeup Artist |
| Roberto Cocco | Production Manager |
| Danilo Donati | Costume Design |
| Federico Fellini | Story |
| Bernardino Zapponi | Story |
| Danilo Donati | Production Design |
| Luigi Scaccianoce | Production Design |
| Danilo Donati | Set Decoration |
| Brunello Rondi | Co-Writer |
| Giuseppe Maccari | Camera Operator |
| Joseph Nathanson | Visual Effects |
| Maurizio Mein | First Assistant Director |
| Liliana Betti | Second Assistant Director |
| Lia Consalvo | Second Assistant Director |
| Norma Giacchero | Script Supervisor |
| Adriana Olasio | Assistant Editor |
| Luciano Vito | Hair Department Head |
| Enzo Provenzale | Line Producer |
| Lamberto Pippia | Unit Manager |
