Analía Gadé as Desirée Charrier

Jean Sorel as Teniente Barney Holmes

Espartaco Santoni as Dr. Javier Echevarría

José Luis López Vázquez as Terence

Stephen Boyd as León Urrutía, joyero

Mabel Karr as Madame Chantal

George Rigaud as Mr. Stanley (as Jorge Rigeaut)

Beni Deus as

José Riesgo as Capitán de Scotland Yard

Ramón Ferrer as

Eva León as Enfermera

Rosanna Pardo as

Saturno Cerra as

Ernesto Vañes as

Antonio Orengo as

Melquiades Álvarez as

Francisco Agudín as

Félix Acaso as Mr. Decker (voice) (uncredited)

Ángel Ter as Voz del magnetofón (voice) (uncredited)