Pilar Gefaell was a Spanish voice actress known for her work in dubbing anime and live-action productions into Spanish. Her career is documented through her contributions to various series and films, primarily for dubs produced in Spain. Among her notable roles in anime was providing the Spanish voice for the character Silen in the crossover film Mazinger Z Vs. Devilman. This movie, which brought together characters from the Mazinger Z and Devilman franchises, featured Silen as a key antagonist from the Devilman side. Gefaell's other prominent anime voice roles included a multifaceted performance in the series The Vision of Escaflowne, where she voiced the characters Dilandau Albatou, Elise Aston, and Naria. She also had an extensive list of roles in the Wedding Peach series, lending her voice to numerous characters including Queen Devila, Afrodita, and Aquarda. Her work in the medium extended to other projects such as the original video animations (OAVs) Shuten Doji, where she voiced Alfard and Ricky, and Night Warriors - Darkstalkers' Revenge. In addition to anime, Gefaell contributed to the Spanish-language versions of various films. This included voicing Ingrid Hunnigan in the animated film Resident Evil: Degeneration and taking on unnamed roles in the live-action movies Speed Racer and several installments of the Transformers series, such as Transformers: Revenge of the Fallen and Transformers: Dark of the Moon. Pilar Gefaell passed away on January 14, 2012.