Directed by
| Luis María Delgado | ||
Writing Credits (in alphabetical order)
| Luis María Delgado | ... | (screenplay) |
| Diego Santillán | ... | (screenplay) |
| Diego Santillán | ... | (story) |
Cast (in credits order) complete, awaiting verification
| Alfredo Landa | ... | Profesor Mussy | |
| Antonio Ferrandis | ... | Profesor Robertson | |
| Jorge Rivero | ... | Profesor Jorge Figueredo | |
| Silvia Aguilar | ... | Margarita | |
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Ricardo Merino | ... | Profesor Petrucelli |
| Alfonso del Real | ... | Profesor Rosenberg | |
| Hilda Aguirre | ... | Dra. Doris Green | |
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Angélica Chain | ... | Helga |
| Rebeca Silva | ... | Dra. Birley | |
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Guillermo Antón | ... | Ayudante del Sr. Smith (as William Anthon) |
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Xesc Forteza | ... | (as Xexc Forteza) |
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Fernando E. Romero | ... | (as Fernando Romero) |
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Luis Barbero | ... | Padre de Margarita |
| Bonet de San Pedro | ... | Self | |
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Sally Sitton | ||
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María Bauza | ||
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Sebastián Roses | ||
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Ana Segura | ||
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Miguel Llabres | ||
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María Reus | ||
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Juan Bonet | ||
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Bernardo Morey | ||
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Marga Luz | ||
| Rafaela Aparicio | ... | Madre de Margarita | |
| José Luis López Vázquez | ... | Sr. Smith | |
Produced by
| Carlos Vasallo | ... | producer |
Music by
| Gregorio García Segura | ||
Cinematography by
| Manuel Rojas | ||
Additional Crew
| Juan Miguel Cuesta | ... | voice dubbing: Guillermo Antón (uncredited) |
| Javier Dotú | ... | voice dubbing: Jorge Rivero (uncredited) |
| Lucía Esteban | ... | voice dubbing: Hilde Aguirre (uncredited) |
| Carlos Revilla | ... | voice dubbing (uncredited) |
| María Antonia Rodríguez | ... | voice dubbing: Silvia Aguilar (uncredited) |