 | Brigitte Bardot als Giuseppina (segment "William Wilson") |
 | Alain Delon als William Wilson and his double (segment "William Wilson") |
 | Jane Fonda als Contessa Frederique de Metzengerstein (segment "Metzengerstein") |
 | Terence Stamp als Toby Dammit (segment "Toby Dammit") |
 | Peter Fonda als Baron Wilhelm Berlifitzing (segment "Metzengerstein") |
 | James Robertson Justice als Countess' Advisor (segment "Metzengerstein") |
 | Salvo Randone als Priest (segment "Toby Dammit") |
 | Françoise Prévost als Friend of Countess (segment "Metzengerstein") |
 | Katia Christine als Girl on Dissection Table |
 | Philippe Lemaire als Philippe |
 | Serge Marquand als Hugues |
 | John Karlsen als Schoolmaster (segment "William Wilson") (uncredited) |
 | Maria Tedeschi als Woman (uncredited) |
 | Milena Vukotić als TV Interviewer (segment "Toby Dammit") (uncredited) |
 | Umberto D'Orsi als Hans (segment "William Wilson") |
 | Daniele Vargas als University Professor (segment "William Wilson") |
 | Ernesto Colli als Manetti Brother (segment "Toby Dammit") (uncredited) |
 | Marie-Ange Aniès als Courtesan (segment "Metzengerstein") |
 | Anny Duperey als Courtesan (segment "Metzengerstein") (uncredited) |
 | Irina Maleeva als Gypsy Fortune Teller (Segment "Toby Dammit") (uncredited) |
 | Alfredo Rizzo als Angry Man in Car (segment "Toby Dammit") (uncredited) |
 | Marisa Traversi als Marilù Traversi (segment "Toby Dammit") (uncredited) |
| Marlène Alexandre |
| Federico Fellini | Director |
| Louis Malle | Director |
| Roger Vadim | Director |
| Alberto Grimaldi | Producer |
| Tonino Delli Colli | Director of Photography |
| Claude Renoir | Director of Photography |
| Franco Arcalli | Editor |
| Ruggero Mastroianni | Editor |
| Hélène Plemiannikov | Editor |
| Jean André | Production Design |
| Piero Tosi | Production Design |
| André Cultet | Production Manager |
| Ludmilla Goulian | Production Manager |
| Thomas Sagone | Production Manager |
| Enzo Provenzale | Production Manager |
| Joseph Nathanson | Visual Effects |
| Roger Vadim | Screenplay |
| Pascal Cousin | Screenplay |
| Roger Vadim | Adaptation |
| Pascal Cousin | Adaptation |
| Clement Biddle Wood | Screenplay |
| Clement Biddle Wood | Adaptation |
| Daniel Boulanger | Dialogue |
| Louis Malle | Adaptation |
| Louis Malle | Screenplay |
| Federico Fellini | Screenplay |
| Federico Fellini | Adaptation |
| Bernardino Zapponi | Screenplay |
| Bernardino Zapponi | Adaptation |
| Raymond Eger | Delegated Producer |
| Giuseppe Rotunno | Director of Photography |
| Jean Prodromidès | Original Music Composer |
| Diego Masson | Original Music Composer |
| Nino Rota | Original Music Composer |
| Ghislain Uhry | Set Decoration |
| Ghislain Uhry | Costume Design |
| Piero Tosi | Costume Design |
| Jean-Michel Lacor | First Assistant Director |
| Michel Clément | First Assistant Director |
| Serge Vallin | First Assistant Director |
| Vana Caruso | First Assistant Director |
| Eschilo Tarquini | First Assistant Director |
| Francesco Aluigi | First Assistant Director |
| Liliana Betti | First Assistant Director |
| Philippe Brun | Camera Operator |
| Alain Douarinou | Camera Operator |
| Bernard Noisette | Camera Operator |
| Sergio Bergamini | Camera Operator |
| Giuseppe Maccari | Camera Operator |
| Catherine Gabrielidis | Assistant Editor |
| Claire Giniewski | Assistant Editor |
| Piera Gabutti | Assistant Editor |
| Suzanne Baron | Assistant Editor |
| Adriana Olasio | Assistant Editor |
| Vanda Olasio | Assistant Editor |
| Suzanne Durrenberger | Script Supervisor |
| Norma Giacchero | Script Supervisor |
| Carlo Leva | Set Decoration |
| Jean Forestier | Assistant Set Decoration |
| Jacques Fonteray | Costume Design |
| Edgar Allan Poe | Short Story |
| Wladimir Ivanov | Camera Operator |
| Shaila Rubin | Script Supervisor |
