Sonia Torrecilla is a Spanish voice actor with over two decades of experience in the dubbing industry, primarily known for her work in anime and animation. She is most recognized for providing the Spanish voice for the protagonist Shinnosuke Nohara, better known as Shin-chan, in the long-running series Crayon Shin-chan and its numerous films.

Her career is closely associated with dubbing studios based in the Basque Country, such as Arteik, Mar Digital in Llodio, Domusic in Erandio, and FXMedia in Galdácano, which handled many anime productions for the Spanish market. Within this sphere, she has built an extensive portfolio of voice roles. A significant portion of her work is in the Doraemon franchise, where she has voiced multiple characters across different productions. She is credited as a secondary substitute voice for the character Shizuka Minamoto in the 2001 TV dubbing of the 1979 Doraemon series. Her roles in this franchise also include substitute voice work for the robotic cat Dorami, as well as for supporting characters like Shizuka's mother, Suneo's mother, and the cat Mii-chan.

Beyond these flagship series, Torrecilla's voice can be heard in a wide variety of other animated productions. Her credits include the series Sargento Keroro (Keroro Gunsō), Kochikame, Las tortugas ninja (Teenage Mutant Ninja Turtles), Titeuf, Garfield, X-Men Evolution, and La liga de la Justicia (Justice League). Her professional activity is not limited to animation; she has also lent her voice to live-action productions such as the medical drama Chicago Med and the documentary series Cazadores de mitos (MythBusters). Additionally, her work encompasses video games, commercials, and feature films.

Torrecilla's significant contribution to the field, particularly through her iconic role as Shin-chan, has established her as a well-respected figure in Spanish dubbing. This recognition is evidenced by invitations to share her expertise, such as teaching a masterclass to students at the Escuela de Doblaje de Anselmo Herrero in Santander in 2019.