Swamp of the Lost Monster

Gastón Santos

Gastón

Rayo de Plata

Gastón's Horse

Manola Saavedra

Julieta

Pedro de Aguillón

Espergencio

Manuel Dondé

Don Nacho Mendoza

Sara Cabrera

Doña María

Salvador Godínez

Rolando (Jefe villanos)

Lupe Carriles

Carmela

Gabriel Álvarez

Fabrique Mendoza (uncredited)

Magdaleno Barba

Enterrador (uncredited)

Arturo Corona

Doctor Morales (uncredited)

José Dupeyrón

Villano (uncredited)

Vicente Lara

Villano (uncredited)

Antonio Sandoval

Villano (uncredited)

Hernán Vera

Cantinero (uncredited)