Renato Márcio Bonfim is a Brazilian actor and voice actor born in Itanhomi on February 28, 1950. He has built an extensive career dubbing a wide variety of characters in anime series and films for the Brazilian Portuguese market.

His voice is featured in numerous prominent anime productions. In the Netflix original series B: The Beginning and its sequel B: The Beginning Succession, he voices the character Boris Meyer. He is also the voice of Ippei Amanokawa in The Rebirth of Buddha and played Fujiwara in the film Mai Mai Miracle. His work includes roles in the Pokémon franchise, such as Gengar in Pokémon Mystery Dungeon: Team Go-Getters Out of the Gate! and the villainous Charon in the Pocket Monsters: Diamond & Pearl series. He voiced the character Hanuman in Ramayana: The Legend of Prince Rama.

Beyond these, his filmography includes the role of Thomas Edison in The Laws of Eternity and Moses in The Golden Laws. He has also contributed to long-running and globally recognized series, providing voices in Naruto (as Gamakichi, Shukaku, and Shikaku Nara), One Piece, and Dragon Ball. His work in the Bakugan franchise includes voicing Nurzak in Bakugan Battle Brawlers: Gundalian Invaders and Taylean in Bakugan: Mechtanium Surge. He also voiced the character Rei dos Mares in Hans Christian Andersen's The Little Mermaid and Virgílio in Dante's Inferno: An Animated Epic.

In addition to his work as a voice actor, Renato Márcio has also contributed to the industry as a dubbing director. Notably, he served as the dubbing director for the Brazilian Portuguese versions of the anime films The Laws of Eternity and The Golden Laws.

His career demonstrates a consistent presence in the field of anime dubbing, bringing to life a diverse range of characters, from mentors and villains to creatures and historical figures, for Brazilian audiences.