Cast & crew
Swamp of the Lost Monster (1957)
Directed by Rafael Baledón Written by Ramón Obón
Cast
| Pedro de Aguillón | Espergencio |
| Manuel Dondé | Nacho |
| Rayo de Plata | Horse |
| Gastón Santos | Gastón Gastélum |
| Sara Cabrera | Doña Rosario |
| Manola Saavedra | Julieta |
Crew
| Raúl Martínez Solares | Director of Photography |
| Gustavo César Carrión | Original Music Composer |
| Manuel Ladrón de Guevara | Set Decoration |
| Rafael Baledón | Director |
| Alfredo Ripstein Jr. | Producer |
| Guillermo Castillo | Casting |
| Juan José Marino | Editor |
| Ramón Obón | Writer |