Inspector Tanner
Conrado San Martín
Wanda Bronsky / Melissa
Diana Lorys
Klein
Manuel Vázquez
Juan Antonio Riquelme
Malou (as Fernando C. Montes)
Fernando Montes
Ursula Camila
Elena María Tejeiro
Javier de Rivera
Ángel Calero
Sandalio Hernández
Fernando Sala
(as Mª de la Riva)
María de la Riva
Laly Vicent
Dr. Orloff
Howard Vernon
José Carlos Arévalo
Enrique Ferpi
Rafael Ibáñez
Madame Gold
Carmen Porcel
Rafael Hernández
Marisa Paredes
Luis Rico
False Suspect
Juan García Tiendra
Amy Márquez
Antonio Ramos
Arne
Perla Cristal
Luis Domínguez Luna
(as Mari Carmen Ruiz)
María del Carmen Ruiz
Pedro José Mariña
Wanda's Dresser
Pilar Gómez Ferrer
Tito García
(as Mercedes Manera)
Mercedes Manero
(as Juan Antº Arévalo)
Juan Antonio Arévalo
Pianist (uncredited)
Jesús Franco
Dany (as Mary Silvers)
María Silva
Morpho Lodner
Ricardo Valle
Irma Gold
Mara Laso
Jean Rousseau 'Jeannot'
Venancio Muro
Chief Inspector
Félix Dafauce
Raymond
Faustino Cornejo
Director
Story
Screenplay
Producer
Leo Lax
Marius Lesoeur
Original Music Composer
José Pagán
Antonio Ramírez Ángel
Novel
David Khune
Director of Photography
Godofredo Pacheco
Script Supervisor
Isabel Campo
Assistant Editor
Alicia Castillo
Costumer
Rando
Angelines Castro
Makeup Artist
Adolfo Ponte
Assistant Makeup Artist
María Teresa Martín
Set Decoration
Antonio Simont
Property Master
Martín Sacristán
Costume Designer
Izquierdo
Cinematography
Still Photographer
Daniel Ortiz
Assistant Director
Alfredo Hurtado
Production Supervisor
Ángel Rosson y Rubio
Production Assistant
Miguel Asensio
Assistant Set Decoration
Félix Michelena
Special Effects
Pirax
Camera Operator
Javier Pérez Zofio
Production Manager
Gerardo Mendiburu
Editor
Alfonso Santacana
Executive Producer
Sergio Newman
Costume Supervisor
María del Carmen Martínez Román