"El Amante Bilingüe" was co-produced with Italian investors, and the role of Norma was given to Ornella Muti, an Italian actress famous for her beauty. Muti first gained attention in the English-speaking world as the princess in "Flash Gordon" (1980). Here, she played the suggestive role of a wealthy woman with unusual sexual fantasies. Aranda recalled: 'I was very pleased with Ornella; she did as much as she could to adjust to the requirements of the film, but she is extremely beautiful, and perhaps, another less attractive actress might have better suited the dark tone of the film.'