Directed by
| Romolo Guerrieri | ||
Writing Credits (in alphabetical order)
| John Crowther | ... | (screenplay) |
| Nico Ducci | ... | (screenplay) |
| Romolo Guerrieri | ... | (screenplay) |
| Mino Roli | ... | (screenplay) |
| Vittorio Schiraldi | ... | (original story) |
| Vittorio Schiraldi | ... | (screenplay) |
Cast (in credits order)
| David Janssen | ... | Lester Horton | |
| Corinne Cléry | ... | Anna Florio | |
| Maurizio Merli | ... | John Florio | |
 |
Ivan Rassimov | ... | Maxwell's Man |
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Carla Romanelli | ... | Aliki |
| Giacomo Rossi Stuart | ... | Grant | |
| Faidon Georgitsis | ... | Yorgos Cristopoulos (as Phedon Georgitsis) | |
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Dimitris Ioakeimidis | ... | Mehmet (as Iakimidos Dimitrios) |
|
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Tom Felleghy | ... | Dr. Ioannidis (as Thomas Felleghy) |
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Alberto Martelli | ||
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Giorgio Scardovi | ||
| Arthur Kennedy | ... | Maxwell | |
| Philippe Leroy | ... | Inspector Radi Stavropoulos | |
| Rest of cast listed alphabetically: | |||
|
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Giovanni Cianfriglia | ... | Henchman (uncredited) |
| Marina Haritou | ... | (uncredited) | |
Produced by
| Mihalis Lefakis | ... | producer |
Music by
| Stelvio Cipriani | ||
Cinematography by
| Erico Menczer | ||
Editing by
| Antonio Siciliano | ||
Costume Design by
| Massimo Bolongaro | ||
Makeup Department
| Giuliano Laurenti | ... | make-up |
| Elda Magnanti | ... | hairdresser (as Elsa Magnanti) |
Production Management
| Roberto Cuomo | ... | unit manager |
| Giuseppe Ercolani | ... | unit manager |
| Franco Silvestri | ... | unit manager |
Second Unit Director or Assistant Director
| Renzo Girolami | ... | assistant director (as Renzo Spaziani) |
Art Department
| Adriano Tiberi | ... | prop man |
Sound Department
| Luciano Muratori | ... | boom swinger |
| Primiano Muratori | ... | sound engineer |
Special Effects by
| Paolo Ricci | ... | special effects |
Stunts
| Domenico Cianfriglia | ... | stunts (uncredited) |
| Giovanni Cianfriglia | ... | stunts (uncredited) |
Camera and Electrical Department
| Maurizio La Monica | ... | assistant cameraman |
| Giuseppe Tinelli | ... | camera operator |
| Giovanni Vino | ... | still photographer |
Costume and Wardrobe Department
| Valeria Sponsali | ... | seamstress |
Editorial Department
| Giancarlo Morelli | ... | assistant editor |
Script and Continuity Department
| Beatrice Banfi | ... | continuity |
Additional Crew
| Giorgio Oddi | ... | accountant |
| Pino Colizzi | ... | voice dubbing: Phedon Georgitis (uncredited) |
| Luciano De Ambrosis | ... | voice dubbing: Giacomo Rossi Stuart (uncredited) |
| Arturo Dominici | ... | voice dubbing: Arthur Kennedy (uncredited) |
| Vittoria Febbi | ... | voice dubbing: Corinne Cléry (uncredited) |
| Sergio Graziani | ... | voice dubbing: Philippe Leroy (uncredited) |
| Giorgio Piazza | ... | voice dubbing: Tom Felleghy (uncredited) |
| Giuseppe Rinaldi | ... | voice dubbing: David Janssen (uncredited) |
