Hugo Blanco

Andros

Acting

Agnès Spaak

Melissa

Acting

Perla Cristal

Rosa

Acting

Magda Maldonado

Amira (as Magda MacDonald)

Acting

Marcelo Arroita-Jáuregui

Dr. Conrad Jekyll

Acting

Pepe Rubio

Juan Manuel

Acting

Pastor Serrador

Inspector Klein

Acting

Luisa Sala

Inglud Jekyll / Ingrid Fisherman

Acting

Manuel Guitián

Ciceron

Acting

Ramón Lillo

Emilio, the inspector's assistant

Acting

Jesús Franco

Piano Player

Directing

Marta Reves

Acting

Daniel Blumer

Karl Steiner

Acting

Mer Casas

Conrad's Girlfriend

Acting

Rafael Hernández

Club Owner

Acting

José Truchado

Policeman

Writing

Juan Antonio Soler

Witness

Acting

Javier de Rivera

The Professor

Acting

Julio Infiesta

Club Security

Acting

Julia Toboso

Acting

Maribel Hidalgo

Acting

Pedro Fenollar

Lang (uncredited)

Acting