Dr. Orloff's Monster

Hugo Blanco

Andros

Agnès Spaak

Melissa

Perla Cristal

Rosa

Magda Maldonado

Amira (as Magda MacDonald)

Marcelo Arroita-Jáuregui

Dr. Conrad Jekyll

Pepe Rubio

Juan Manuel

Pastor Serrador

Inspector Klein

Luisa Sala

Inglud Jekyll / Ingrid Fisherman

Manuel Guitián

Ciceron

Ramón Lillo

Emilio, the inspector's assistant

Jesús Franco

Piano Player

Marta Reves

Daniel Blumer

Karl Steiner

Mer Casas

Conrad's Girlfriend

Rafael Hernández

Club Owner

José Truchado

Policeman

Juan Antonio Soler

Witness

Javier de Rivera

The Professor

Julio Infiesta

Club Security

Julia Toboso

Maribel Hidalgo

Pedro Fenollar

Lang (uncredited)

Jesús Franco

Director

Jesús Franco

Screenplay

Jesús Franco

Dialogue

Nicole Guettard

Writer

Marius Lesoeur

Producer

Julio Parra

Production Supervisor

Alfonso Nieva

Director of Photography

Daniel White

Original Music Composer

Fernando García Morcillo

Music

Ángel Serrano

Editor

Fernando Somoza

Production Design

R. St. Martin

Sound Engineer