Fernando Casanova as Dr. Malthus/Gonzalo Malthus

Sonia Furió as Rosa

Rosa Maria Gallardo as Última raptada

Guillermo Cramer as Inspector de policía

Aurora Alvarado as Luisa

Juan José Martínez Casado as Alcaide

Pedro de Aguillón as Capellán

Guillermo Bravo Sosa as Remigio (uncredited)

Edmundo Espino as Antonio (uncredited)

Armando Velasco as Tío de Rosa (uncredited)