Gustavo Melgarejo is a Mexican voice actor known for his extensive work in dubbing animated series and films into Latin American Spanish. Born on November 28, 1970, in Atzalan, Veracruz, Mexico, he has built a prolific career spanning numerous genres, including Western animation, anime, and live-action dubbing.

Melgarejo’s career includes a wide range of voice roles, but he is particularly recognized by anime fans for his performances in several popular long-running series. He voices Kensei Muguruma, a former captain of the 9th Division in the Gotei 13, in the anime Bleach. Melgarejo has portrayed this role across multiple story arcs, including the final season of the original series and its sequel, Bleach: Thousand-Year Blood War. Another significant anime role is Dr. Mashirito, the eccentric and comedic villain and rival of Senbei Norimaki, in the Dr. Slump franchise. He provided the voice for this character in the 1990s series and various Dr. Slump films.

Beyond these roles, his anime filmography includes lending his voice to Oliver Atom in Supercampeones J, a sequel to the original Captain Tsubasa series. He has also been part of the Latin American Spanish dubbing cast for One Piece, where he has voiced several characters such as Kuromarino and Daikon. His work extends to the Digimon franchise, where he voiced Ogremon in Digimon: Digital Monsters and Stingmon, Paildramon, and Imperialdramon in Digimon 02. Additionally, he has performed roles in Slam Dunk as Norio "Nori" Hotta and in El amor a través de un prisma.

While he is a prominent figure in anime dubbing, Melgarejo has an equally extensive career in Western animation. Notable roles include Carl Chryniszzswics in Johnny Bravo, the voice of BMO for the first five seasons of Adventure Time, and multiple characters in the Ben 10 franchise, such as Cannonbolt and Goop. His work also includes roles in The Simpsons, Futurama, Family Guy, and MAD.

Melgarejo’s career is characterized by recurring collaborations with major animation studios and dubbing directors, though his work is spread across numerous projects for different distributors. His ability to voice a wide array of characters, from heroic fighters to comedic villains, is a notable aspect of his professional achievements. He is recognized as a consistent presence in the Mexican dubbing industry, having contributed to many of the most beloved animated franchises for Latin American audiences over several decades.