Javier Olguín, also credited as Javier Olguín Vega, is a prominent Mexican voice actor and ADR director extensively involved in the Latin Spanish dubbing of anime and animated series. His career encompasses a vast array of voice roles, and he has also taken on significant responsibilities behind the microphone as a dubbing director for numerous high-profile projects.

As a voice actor, Olguín is known for his versatility, bringing to life a wide spectrum of characters. He has voiced leading and supporting roles in many popular series. Some of his most recognized performances include Izumi Miyamura in Horimiya, Yuki Soma in the 2019 Fruits Basket, Sadao Maou in The Devil Is a Part-Timer!!, and the titular character Kazuma Satō in the KonoSuba series. He has also portrayed Uramichi Omota in Life Lessons with Uramichi-Oniisan, Tsukasa Fujii in the film your name., Dom in BEASTARS, and Alan Sylvasta in BNA: Brand New Animal. His extensive filmography further includes roles such as Fubuki Spring in Scarlet Nexus, Hatori Ōtani in Stand My Heroes: Piece of Truth, Soraya in Drifting Dragons, Shū Bi in Back Arrow, Scoop in Fire Force, Skargo in In the Land of Leadale, Allegro in Vampire in the Garden, Kunimi in The Way of the Househusband, Takehiro Kai in Godzilla Singular Point, Turkey in Dorohedoro, Kentaro in Barom One, and both Boomer and Brick in Demashitaa! Powerpuff Girls Z. He has also voiced characters in long-running franchises like Pokémon, as Baraz and Keldeo, and Lync in Bakugan Battle Brawlers: New Vestroia.

Beyond his acting, Javier Olguín has established himself as a key ADR director for Latin Spanish dubs. His directorial work includes the Mexican dub of the critically acclaimed film your name., as well as series like KonoSuba, Re:ZERO -Starting Life in Another World-, BNA: Brand New Animal, and the film Bright: Samurai Soul. This role places him in charge of overseeing the dubbing process, including casting and directing other voice actors to ensure a cohesive and high-quality final product for Spanish-speaking audiences. His dual expertise as both an actor and a director makes him a significant figure in the industry.