Directed by
| Jesús Franco | ... | (as Jess Franco) |
Writing Credits (in alphabetical order)
| Jesús Franco | ... | (story and screenplay) (as J. Franco) |
| Manfred R. Köhler | ... | (story and screenplay) (uncredited) |
| Sax Rohmer | ... | (novels) |
| Harry Alan Towers | ... | (story and screenplay) (as Peter Welbeck) |
Cast (in credits order) complete, awaiting verification
| Christopher Lee | ... | Fu Manchu | |
| Richard Greene | ... | Nayland Smith | |
| Howard Marion-Crawford | ... | Dr. Petrie (as Howard Marion Crawford) | |
| Götz George | ... | Carl Jansen | |
| Maria Rohm | ... | Ursula Wagner | |
| Ricardo Palacios | ... | Sancho Lopez | |
| Loni von Friedl | ... | Celeste | |
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Frances Khan | ... | Carmen |
| Tsai Chin | ... | Lin Tang | |
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Isaura de Oliveira | ... | Yuma |
| Shirley Eaton | ... | Black Widow | |
| Rest of cast listed alphabetically: | |||
| David de Keyser | ... | of The Governor andothers (voice) | |
| Robert Rietty | ... | of Jansen and Lopez and others (voice) | |
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Marcelo Arroita-Jáuregui | ... | The Governor (uncredited) |
| Jesús Franco | ... | Inspector Ahmet (uncredited) | |
|
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Olívia Pineschi | ... | One of Fu's Girl (uncredited) |
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Vicente Roca | ... | Governor's Secretary (uncredited) |
| Francesca Tu | ... | Lotus (uncredited) | |
Produced by
| Harry Alan Towers | ... | producer |
Music by
| Daniel White | ||
Cinematography by
| Manuel Merino | ... | (photographed by) |
Editing by
| Waltraut Lindenau | ... | (German version) |
| Allan Morrison | ... | (original version) |
| Stanley Frazen | ... | (uncredited) |
| Ángel Serrano | ... | (uncredited) |
Production Design by
| Peter Gasper | ... | (uncredited) |
Production Management
| Juan Estelrich | ... | production manager |
Second Unit Director or Assistant Director
| Juan Estelrich | ... | assistant director |
| Reynaldo Paes de Barros | ... | assistant director |
| Carmen Salas | ... | assistant director |
Sound Department
| Bill Creed | ... | dubbing editor |
| Malcolm Stewart | ... | sound |
Camera and Electrical Department
| Ray Andrew | ... | clapper loader (uncredited) |
| John Cabrera | ... | focus puller (uncredited) |
Additional Crew
| Paul Bürks | ... | voice dubbing: Marcelo Arroita Jauregui (uncredited) |
| Ernst Konstantin | ... | voice dubbing: Howard Marion-Crawford (uncredited) |
| Klaus W. Krause | ... | voice dubbing: Ricardo Palacios (uncredited) |
| Maria Landrock | ... | voice dubbing: Shirley Eaton (uncredited) |
| Wolf Rahtjen | ... | voice dubbing: Vicente Roca (uncredited) |
| Thomas Reiner | ... | voice dubbing: Richard Greene (uncredited) |
| Helga Trümper | ... | voice dubbing: Maria Rohm (uncredited) |
| Lis Verhoeven | ... | voice dubbing: Tsai Chin (uncredited) |
| Herbert Weicker | ... | voice dubbing: Christopher Lee (uncredited) |
| Kurt Zips | ... | voice dubbing (uncredited) |
