Diana Sorel
Dr. Dora Materlick
Acting
Nicholas Ney
Karl Von Rysselberg
Acting
Inés Morales
Veronica (as Inés Skorpio)
Acting
Loreta Tovar
Margaret (as Loretta Martin)
Acting
Beatriz Elorrieta
Erica Rosenberg
Acting
Antonio Jiménez Escribano
Barón von Rysselberg
Acting
José Villasante
Otto
Acting
Rosario Royo
Housekeeper
Acting
Rafael Vaquero
Major Christopher Roland
Acting
Susan Taff
Brenda
Acting
María Luisa Tovar
Cyclist's Widow (as Marisa Tobar)
Acting
Francisco Bonmatí
Cyclist
Acting
Jesús Alesanco
(uncredited)
Acting
Francisco Correa
(uncredited)
Acting
Ricardo Vázquez
Vampiro de las ruinas
Acting