María Luisa Ezquerra Royo, known professionally as Luisa Ezquerra, is a Spanish actress of voice and dubbing born on March 6, 1958, in Zaragoza, Spain. Her path to becoming a prominent figure in Spanish dubbing began with a foundational education in the performing arts. She studied acting at the Escuela de Arte Dramático de Zaragoza and later earned a degree in English Philology from the University of Zaragoza before moving to Madrid in 1982 to pursue a professional career. While working as a teacher, she enrolled in dubbing courses, which led to her first job in the field later that same year on the series Galactica. She subsequently joined the studio Tecnison, where she worked for five years and honed her craft alongside fellow Aragonese actor José Luis Gil.

While Ezquerra is renowned for her extensive work in dubbing American television series and films, she has also made significant contributions to the world of anime for Spanish audiences. Her voice can be heard in several classic and long-running series. According to the Anime News Network encyclopedia, her anime roles include voicing Lisa Hayes in the Spanish dub of Robotech, and multiple characters in the City Hunter franchise, such as Kazue Natori and Utako Yumeno in the original series, as well as Hiromi Ayuhara and others in City Hunter 2. In the Sailor Moon universe, she provided voices for Petz in Sailor Moon R and Marta (Tellu) in Sailor Moon S. Her work also extends to the Pokémon anime, where she voiced characters like Sabrina's Mother and Edna, and to series such as Super Bikkuriman and Case Closed. A specific example of her anime work, as highlighted in the user query, is her role as Aya in the film Taro the Dragon Boy.

Beyond animation, Ezquerra's dubbing career is distinguished by her long-term association with numerous iconic characters in live-action and animated series. She is widely recognized as the Spanish voice of Lois Griffin in the animated series Family Guy, a role she has performed for most of the show's run. Her other notable dubbing credits include Dharma Finkelstein in Dharma & Greg, Ruth Fisher in Six Feet Under, Mallory Archer in Archer, and Clair Huxtable in The Cosby Show. She also became well-known for her work on the satirical puppet show Las noticias del guiñol, where she voiced Spanish public figures Ana Botella and Esperanza Aguirre.

Throughout her decades-long career, Ezquerra has established recurring professional collaborations. She has frequently been the Spanish dubbing voice for actresses such as Alex Borstein, Frances Conroy, and Phylicia Rashad. Her professional partnership with director and actor Ramiro de Maeztu has been particularly significant, extending beyond specific projects to their joint founding of a dubbing and communication school.

In addition to her performance work, Luisa Ezquerra is a notable educator in her field. In 2010, she co-founded the Luisa Ezquerra school for voice and communication in Madrid, later opening a second location in Málaga, demonstrating her commitment to training new generations of voice professionals. Her contributions to acting have also been recognized with awards; in recent years, she won the Best Actress award at the Calzada de Calatrava Film Festival for her leading role in the film La vecina de al lado, marking a significant achievement in her on-screen acting career.