Swamp of the Lost Monster
A disappearing body leads a detective and his sidekick into an encounter with a gill man.
| Actor | Role |
|---|---|
 Gastón SantosGastón | Gastón |
| RRayo de PlataGastón's Horse | Gastón's Horse |
 Manola SaavedraJulieta | Julieta |
 Pedro de AguillónEspergencio | Espergencio |
 Manuel DondéDon Nacho Mendoza | Don Nacho Mendoza |
| SSara CabreraDoña María | Doña María |
 Salvador GodínezRolando (Jefe villanos) | Rolando (Jefe villanos) |
 Lupe CarrilesCarmela | Carmela |
| GGabriel ÁlvarezFabrique Mendoza (uncredited) | Fabrique Mendoza (uncredited) |
| MMagdaleno BarbaEnterrador (uncredited) | Enterrador (uncredited) |
| AArturo CoronaDoctor Morales (uncredited) | Doctor Morales (uncredited) |
| JJosé DupeyrónVillano (uncredited) | Villano (uncredited) |
| VVicente LaraVillano (uncredited) | Villano (uncredited) |
| AAntonio SandovalVillano (uncredited) | Villano (uncredited) |
 Hernán VeraCantinero (uncredited) | Cantinero (uncredited) |