Elenco - O Terrível Dr. Orloff
Conrado San Martín
Inspector Tanner
Diana Lorys
Wanda Bronsky / Melissa
Howard Vernon
Dr. Orloff
Perla Cristal
Arne
María Silva
Dany (as Mary Silvers)
Ricardo Valle
Morpho Lodner
Mara Laso
Irma Gold
Venancio Muro
Jean Rousseau 'Jeannot'
Félix Dafauce
Chief Inspector
Faustino Cornejo
RaymondManuel Vázquez
KleinFernando Montes
Malou (as Fernando C. Montes)
Elena María Tejeiro
Ursula Camila
María de la Riva
(as Mª de la Riva)
Carmen Porcel
Madame Gold
Juan García Tiendra
False SuspectMaría del Carmen Ruiz
(as Mari Carmen Ruiz)
Pilar Gómez Ferrer
Wanda's DresserMercedes Manero
(as Mercedes Manera)