Directed by
| Alberto Negrin | ||
Writing Credits
| Marcello Coscia | ... | (screenplay) & |
| Massimo Dallamano | ... | (screenplay) & |
| Franco Ferrini | ... | (screenplay) & |
| Stefano Ubezio | ... | (screenplay) & |
| Alberto Negrin | ... | (screenplay) & |
| Peter Berling | ... | (screenplay) |
| Thomas Danneberg | ... | (dialogue: German version) |
| Miguel de Echarri | ... | (screenplay) |
Cast (in credits order) complete, awaiting verification
| Fabio Testi | ... | Inspector Gianni Di Salvo | |
| Christine Kaufmann | ... | Christina | |
| Ivan Desny | ... | Chief Inspector Louis Roccaglio | |
| Jack Taylor | ... | Michael Parravicini | |
 |
Bruno Alessandro | ... | Di Salvo's Assistant |
| María Asquerino | ... | Miss Graham | |
| Helga Liné | ... | Mrs. Russo | |
| Silvia Aguilar | ... | Virginia Nardini | |
| Taida Urruzola | ... | Franca | |
| Tony Isbert | ... | Professor Max van der Weyden | |
| Fausta Avelli | ... | Emily Russo | |
|
|
Albertina | ||
|
|
Fabián Conde | ... | Mr. Mandel |
|
|
Brigitte Wagner | ... | Virginia |
|
|
Carmen Carro | ... | Professor Nada Ponente |
|
|
Ricardo Merino | ... | Paola's Father |
|
|
José Nodar | ||
|
|
Tony Valento | ... | Professor Sattaro |
| Cecilia Roth | ... | Salesgirl | |
|
|
José Pagán | ... | Professor Giulio Riva |
|
|
José Gómez Moreno | ||
|
|
Wal Davis | ... | Professor Umberto Conti |
| Carolin Ohrner | ... | Paola Maffei (as Elke Ohrner) | |
| Rest of cast listed alphabetically: | |||
| Peter Berling | ... | Bit Part | |
Produced by
| Artur Brauner | ... | producer |
| Leo Pescarolo | ... | producer (as Leonardo Pescarolo) |
| Antonio Tagliaferri | ... | producer |
Music by
| Riz Ortolani | ||
Cinematography by
| Eduardo Noé | ... | (as Edoardo Noe) |
Editing by
| Paolo Boccio | ||
Costume Design by
| Juan Chamizo | ||
Makeup Department
| Massimo De Rossi | ... | makeup artist |
Production Management
| Diego Gómez Sempere | ... | production manager: Spain (as Diego Sempere) |
| Antonio Mazza | ... | production manager (as Antonino Mazza) |
Second Unit Director or Assistant Director
| Marcello Tagliaferri | ... | assistant director |
| Andrés Vich | ... | assistant director (as Andres Vich) |
Art Department
| Santiago Ontañón | ... | set construction |
Sound Department
| José Almaraz | ... | sound recordist (as Jose Almaraz) |
| Bruno Zanoli | ... | sound recordist |
Camera and Electrical Department
| Carlo Carlini | ... | camera operator / lighting technician |
| Massimo Carlini | ... | camera operator |
| Guillermo Peña | ... | camera operator |
Editorial Department
| Lucia Deidda | ... | first assistant editor |
Additional Crew
| Gert Günther Hoffmann | ... | dubbing director: german version |
| Thomas Danneberg | ... | voice dubbing: Fabio Testi (german version) (uncredited) |
| Luciano Melani | ... | voice dubbing: Fabio Testi (uncredited) |
