M. Carmen Alarcón is a Spanish voice actor known for her work in dubbing anime series and films, primarily into Catalan and Spanish. Her career encompasses a range of characters in animation and live-action productions, contributing to the localization of popular titles for Spanish audiences. One of her notable roles is Princesa Romy in the beloved animated series Around the World with Willy Fog. She also voiced the character Rosa in the Catalan dub of the series The Adventures of the Little Prince.

Alarcón's filmography includes a variety of significant roles in anime dubs. She provided the voice for Lunch in the early episodes of the enduringly popular series Dragon Ball. In the detective anime Case Closed, known in some regions as Detective Conan, she took on the role of the mysterious antagonist Vermouth in a Catalan-language version. Her work in anime films and original video animations is extensive, including voicing Lespina in Arion, Karura in RG Veda, Makie in Wicked City, and Noa Izumi in the first Patlabor movie for its Catalan dub. For Spanish dubs, she voiced the narrator in Mermaid's Scar and Professor Tanemura in Shuten Doji. Beyond animation, her dubbing work extended to live-action films, such as playing Marie Antoinette in the Spanish version of the Lady Oscar film and providing voices for the movies Aeon Flux and Crying Freeman.