| Person | Type | Job | Role(s) |
|---|---|---|---|
 Carlo Savina | Crew | Sound | Music Director |
Danilo Marciani | Crew | Production | Production Manager |
Dino Di Salvo | Crew | Production | Production Secretary |
 Evan Jones | Crew | Writing | Writer |
Franca Silvi | Crew | Editing | Editor |
 Gianni Di Venanzo | Crew | Camera | Director of Photography |
Guidarino Guidi | Crew | Directing | Assistant Director |
 Henri Decaë | Crew | Camera | Director of Photography |
 Hugo Butler | Crew | Writing | Writer |
 James Hadley Chase | Crew | Writing | Novel |
 Joseph Losey | Crew | Directing | Director |
Luigi Scaccianoce | Crew | Art | Production Design |
 Michel Legrand | Crew | Sound | Original Music Composer |
Mimmola Girosi | Crew | Directing | Continuity |
Paolo Ricci | Crew | Directing | Second Assistant Director |
 Pasqualino De Santis | Crew | Camera | Camera Operator |
Raymond Hakim | Crew | Production | Producer, Presenter |
Reginald Beck | Crew | Editing | Editor |
Richard Macdonald | Crew | Art | Production Design |
 Robert Hakim | Crew | Production | Producer, Presenter |
Federico Savina | Crew | Sound | Sound |
Tony Brandt | Crew | Directing | Assistant Director |
Franco Freda | Crew | Costume & Make-Up | Makeup Artist |
Renato Cadueri | Crew | Sound | Sound |
Claudio Maielli | Crew | Sound | Sound |
Giorgio Baldi | Crew | Production | Producer |
Paul Boistelle | Crew | Sound | Sound |
Marcello Mastrogirolamo | Crew | Camera | Assistant Camera |
Anita Borgiotti | Crew | Directing | Script Supervisor |
Emilio Loffredo | Crew | Camera | Assistant Camera |
Amelio Verona | Crew | Sound | Sound |
Tullio D'Achille | Crew | Art | Props |
Sergio Donà | Crew | Art | Assistant Art Director |
Anita Strizzi | Crew | Camera | Still Photographer |
Orlando Pellegrini | Crew | Lighting | Gaffer |
 Checco Rissone | Cast | Actor | Pieri |
 Enrico Maria Salerno | Cast | Actor | (uncredited) |
 Enzo Fiermonte | Cast | Actor | Enzo |
Evi Rigano | Cast | Actress | (as Evy Rigano) |
 Giorgio Albertazzi | Cast | Actor | Sergio Branco Malloni - a Movie Director (uncredited) |
 Ignazio Dolce | Cast | Actor | (uncredited) |
 James Villiers | Cast | Actor | Alan McCormick - a Screenwriter |
 Jeanne Moreau | Cast | Actress | Eva Olivier |
 John R. Pepper | Cast | Actor | The Little Boy |
Joseph Losey | Cast | Actor | Patron at Harry's Bar (uncredited) |
 Lisa Gastoni | Cast | Actress | The Red-Headed Russian |
 Riccardo Garrone | Cast | Actor | Michele - a Player |
Roberto Paoletti | Cast | ||
 Stanley Baker | Cast | Actor | Tyvian Jones |
 Virna Lisi | Cast | Actress | Francesca Ferrara |
 Vittorio De Sica | Cast | Actor | (uncredited) |
Nona Medici | Cast | Anna Maria | |
Alexis Revidis | Cast | The Greek (as Alex Revidis) | |
Van Eicken | Cast | ||
Peggy Guggenheim | Cast | Baccarat-Player at Casino | |
Gilda Dahlberg | Cast | ||
Nicky Amey | Cast | ||
| Person | Type | Job | Role(s) |
