Directed by
| Juan José Patón | ... | (directed by) |
Writing Credits (in alphabetical order)
| Verónica Cervilla | ... | (written by) |
| Felix Iniesta | ... | (script) |
Cast (in credits order)
 |
Tania Serrano | ... | Mary |
| Antonio Mayans | ... | Dr. Vólkov | |
| Alba Ferrara | ... | Isabel | |
|
|
Diana Lucena | ... | Virginia |
|
|
José Casas | ... | S |
|
|
Miguel Angel Romero | ... | Creature (as Miguel Ángel Romero) |
Produced by
| Alberto Martínez | ... | producer |
| Juan José Patón | ... | producer |
| Rocío García Pérez | ... | producer |
| Ana Ramirez | ... | manager producer |
Music by
| Norberto Ramos del Val | ... | (original music by) |
Cinematography by
| Rocío García Pérez | ... | director of photography |
Editing by
| Juan José Patón | ... | (edited by) |
Art Direction by
| Alberto Martínez | ... | (art direction) |
Costume Design by
| Flor Florare | ... | (costumes designed by) |
Makeup Department
| Omar Calzadilla | ... | hair stylist |
| Fran Castro | ... | makeup artist |
Second Unit Director or Assistant Director
| Felix Iniesta | ... | Script |
Sound Department
| Ana Cano | ... | sound |
| Manu Ruíz | ... | sound editor |
Special Effects by
| Ezequiel Borrego | ... | puppets |
| Fran Castro | ... | special effects makeup |
| Alberto Martínez | ... | special effects |
Visual Effects by
| Jusepe Cruz | ... | visual effects |
| Alberto Martínez | ... | visual effects |
| Rocío García Pérez | ... | visual effects |
Stunts
| Ezequiel Borrego | ... | stunt coordinator |
Camera and Electrical Department
| Ana Cobo Arana | ... | first assistant camera |
| Alvaro Arias | ... | electrician |
| Jusepe Cruz | ... | electrician |
| Jesús Montalban | ... | camera operator |
| Juanra Sánchez | ... | still photographer |
Music Department
| Carlitos Hojas | ... | theme music: title song |
Transportation Department
| Javier Cervilla | ... | transportation coordinator |
