Mil Mascaras investigates a nest of fifth-columnists operating out of a carnival (!) led by a Nazi (John Carradine) attempting to resurrect the Third Reich posing as a circus clown .
| Production | Luis Enrique Vergara | Producer |
| Production | Jorge García Besné | Executive Producer |
| Camera | Alfredo Uribe | Director of Photography |
| Editing | José Juan Munguía | Editor |
| Directing | Federico Curiel | Director |
| Writing | Ramón Obón | Writer |
| Sound | Gustavo César Carrión | Original Music Composer |
