Juan Gaudio
Inés Montecruz (as Charito Granados)
Don Gonzalo Montecruz
Cinocéfalo
Enfermera (as Enriqueta Lavat)
Notario
Detective Ramírez
Paciente adolescente
Amiga de Inés en fiesta (uncredited)
Amante de Juan en sombras (uncredited)
Esposo asesinado de paciente (uncredited)
Madre de paciente adolescente (uncredited)
Joven en cementerio (uncredited)
Paciente casada (uncredited)
La viuda en fiesta (uncredited)
Sra. Pantoja (uncredited)
Cantinero (uncredited)