Rubén León is a Mexican voice actor recognized for his extensive work in Latin American Spanish dubs of anime and animated series. He is distinct from a Venezuelan voice actor of the same name, who is known for voicing characters like the Joker in DC Comics animations.

León has built a career characterized by a wide vocal range, allowing him to portray a diverse array of characters, from young boys to elderly men. His body of work is substantial, featuring prominently in the dubbing of numerous Japanese anime series and films for the Mexican and broader Latin American market.

Among his most prolific and recognizable roles is his long-standing association with the Pokémon franchise. He provided the voice for the Pokédex device across several series, including Pokémon Diamond and Pearl and Pokémon Advanced Generation. He also voiced the character Morrison in Pokémon Advanced and took on the role of Snubbull in the special Pokémon Mystery Dungeon: Team Go-Getters Out of the Gate!. Another significant and long-running role in a major anime is that of Marechiyo Ōmaeda in the long-running series Bleach and its sequel, Bleach: Thousand-Year Blood War.

León's filmography includes a variety of other notable anime roles. He voiced Ura in the Netflix original series Drifting Dragons. In the dark fantasy series Sword Gai: The Animation and its second part, he played the character Amon Ogata. He also took on the role of the narrator for the series Love After World Domination. Beyond these, his credits encompass parts in major franchises such as Junk Food in both the 2001 and 2021 versions of Shaman King, Jean Henry Richard in B: The Beginning, and Ben Dixon in the 2004 dub of Robotech.

His work is not limited to anime. León has also contributed his voice to Western animation and live-action productions dubbed into Spanish. This includes voicing Rodimus Prime in the Transformers: Energon series, as well as roles in shows like X-Men, Doug, and ¡Oye Arnold!. In addition to animation, his versatility extends to dubbing live-action films, with credits including a wide range of characters in movies such as Batman Begins, Escuela de rock, and Hotel Rwanda.

Throughout his career, Rubén León has become a familiar and respected voice in the Latin American dubbing industry, contributing to the Spanish-language versions of some of the most popular animated and live-action franchises for decades.