Directed by
| Riccardo Freda | ... | (as Robert Hampton) |
Writing Credits (in alphabetical order)
| Mario Bianchi | ||
| José Gutiérrez Maesso | ... | (as José G. Maesso) |
| Leonardo Martín | ||
Cast (in credits order)
| Camille Keaton | ... | Jane | |
| Tony Isbert | ... | Bill | |
| Máximo Valverde | ... | Joe | |
| Luigi Pistilli | ... | Lord Alexander | |
| Luciana Paluzzi | ... | Lady Alexander | |
 |
José Calvo | ... | Sam David |
| Giovanni Petrucci | ... | Fred | |
| Irina Demick | ... | Bill's mother | |
| Paul Muller | ... | Doctor | |
| Beni Deus | ... | Ferguson | |
| Milo Quesada | ... | Cop | |
|
|
Alejandro de Enciso | ... | Cop in the Car |
| Elsa Zabala | ... | Black Mass Participant | |
|
|
Pablo García | ||
|
|
David Thomson | ... | Black Mass Participant |
| Rest of cast listed alphabetically: | |||
|
|
Adriana Facchetti | ... | Black Mass Participant |
| Carla Mancini | |||
|
|
Maria Mascarielli | ... | Woman Playing Piano (as Ambra Mascarello) |
|
|
Fulvio Mingozzi | ... | Police Inspector |
Produced by
| José Gutiérrez Maesso | ... | producer |
Music by
| Stelvio Cipriani | ||
Cinematography by
| Francisco Fraile | ||
Editing by
| Jolanda Benvenuti | ||
Set Decoration by
| Rafael Ferri | ||
| Amedeo Mellone | ||
Makeup Department
| Ana Criado | ... | hair stylist |
| Cristóbal Criado | ... | makeup artist |
| Luis Criado | ... | assistant makeup artist |
| Renzo Francioni | ... | makeup artist |
Production Management
| Sergio Merolle | ... | production manager |
| Faustino Ocaña | ... | production manager |
Art Department
| Mario Piovano | ... | poster artist |
Sound Department
| Alberto Escobedo | ... | sound technician |
| Eugenio Rondani | ... | sound |
Special Effects by
| Carlo Rambaldi | ... | special effects |
Camera and Electrical Department
| José Luis Criado | ... | assistant camera |
| Giorgio Di Battista | ... | camera operator |
| Miguel Guzmán | ... | still photographer |
| Miguel Ángel Muñoz | ... | assistant camera |
| Teodoro Roa | ... | camera operator |
Costume and Wardrobe Department
| Manolita Iglesias | ... | costumer |
Editorial Department
| Alba Di Salvo | ... | assistant editor |
| Felisa Rueda | ... | assistant editor |
