The role of Trini fell on Maribel Verdú, a young actress who had made her film debut with Aranda in "El Crimen del Capitán Sánchez" ("Captain Sánchez's Crime") in 1984, as the younger sister of Victoria Abril's character, and who was the leading actress of that film. Maribel Verdú, whose artistic culmination maybe is Ricardo Franco's "La Buena Estrella" (1997), is better known internationally for her roles in Alfonso Cuarón’s "Y tu mamá también" (2000) and in Guillermo del Toro's "Pan's Labyrinth" (2006).