The Loreley's Grasp

The legendary Loreley has been living for centuries in a grotto beneath the river Rhein in Germany. Every night when the moon is full, she turns into a reptile-like creature craving for human blood. When one girl after another of a nearby boarding school is killed by her, a hunter named Sigurd is engaged to kill the monster.

• 
  Amando de Ossorio
• 
  Paulino González
• 
  Gloria Roldán

• 
  Tony Kendall
  Sigurd
• 
  Helga Liné
  Lorelei
• 
  Silvia Tortosa
  Elke Ackerman
• 
  Josefina Jartin
  Boarding School Principal
• 
  Loreta Tovar
  Martha (as Lolita Tovar)
• 
  José Thelman
  Carlo Donati (as Joseph Thelman)
• 
  Luis Induni
  Mayor
• 
  Francisco Nieto
  Blind Violinist
• 
  Betsabé Ruiz
  Bride-to-Be
• 
  Luis Barboo
  Alberic
• 
  Ángel Menéndez
  Professor Von Lander
• 
  Sergio Mendizábal
  Doctor
• 
  Marisol Delgado
  Brigitte (as Mary Sol Delgado)
• 
  Victoria Hernández
  Teresa (as Vicky Hernandez)
• 
  María Vidal
  Maid (as Mary Vidal)
• 
  Javier de Rivera
  Preacher
• 
  Antonio Orengo
  Old Man
• 
  Cristino Almodóvar
  Boat Man
• 
  Bárbara Rey
  Lorelei's Assistant (uncredited)
• 
  Iris André
  Blonde Victim (uncredited)