| Actor | Wolfgang Preiss (as Police Inspector), Edmund Purdom (as Edouard Vermont), Maurizio Bonuglia (as John Lubbock), Renato Romano (as Dr. Riccardo Bini), Guido Alberti (as Traversi), Luciano Bartoli (as Walter Auer), Corrado Gaipa (as Director of the Journal), Andrea Scotti (as Vogel), Luigi Antonio Guerra (as Man), Irio Fantini (as Man) |
| Actress | Silvia Monti (as Hèlene), Pamela Tiffin (as Lù Auer), Ira von Fürstenberg (as Isabel Lancia), Rossella Falk (as Sophia Binni), Agostina Belli (as Giulia Soavi) |
| Assistant | Luciano Marin (as Assistant Director) |
| Based on the Novel | David McDonald Devine |
| Creator | Gastone Carsetti (as Scenography), Fiorenzo Senese (as Costume Design), Vittorio Biseo (as Make-up ( Trucco )), Marisa Marconi (as Make-up ( Trucco )) |
| Director | Luigi Bazzoni |
| Director Of Photography | Vittorio Storaro |
| Film Editor | Eugenio Alabiso |
| Music | Ennio Morricone |
| Producer | Manolo Bolognini |
| Production Company | B.R.C. Produzione S.r.l. |
| Screenplay | Luigi Bazzoni, Mario di Nardo, Mario Fanelli |
| Sound | Italo Cameracanna |
| Starring | Franco Nero (as Andrea Bild) |
| Links | https://www.davinotti.com |
