Mauro Castro, born Mauro Castro Sales on August 30, 1961, in Santos, São Paulo, is a highly accomplished Brazilian actor, voice actor, and musician. He began his career in dubbing in 1999 and has since become a prominent and versatile figure in the industry, lending his voice to a vast array of characters in anime, live-action series, and films. Beyond voice acting, he is also a locutor, composer, and singer.

Castro's extensive anime filmography showcases his remarkable range. He is the voice of the Norse god Odin in the popular series Record of Ragnarok. He has taken on roles in different versions of Shaman King, voicing the lizard-like warrior Tokagerō in both the 2001 and 2021 adaptations, as well as the spirit Djinn and Gororo in the newer series. His repertoire includes a wide variety of characters, such as the gangster Kouji Nagata in Back Street Girls: Gokudols, the loyal retainer Okubo in the Netflix film Bright: Samurai Soul, and the enthusiastic Dr. Spike Taylor in both seasons of Dinosaur King. He also voiced the father Hideo Chiyono in the film Seven Days War and the Pokémon battle judge Don George in the Pokémon: Black and White series and its sequel, Rival Destinies.

Castro's work extends to many other major anime franchises. He has voiced Bauzen in the Inazuma Eleven film Saikyō Gundan Ogre Shūrai, the villainous Hell Deathbird in Submarine Super 99, and the Deus do Fogo in a new dubbing of The Little Prince and the Eight-Headed Dragon. His credits also include the role of Papa in I'm Gonna Be An Angel and Mag Mel in Bakugan: Mechtanium Surge. He is particularly well-known within the anime community for his long-standing roles in Dragon Ball, where he has voiced several characters including Rei Cutelo and Rei Vegeta, and in Naruto, where he has voiced Deidara, among many others. He also voices the Pro Hero Ectoplasm in My Hero Academia and Sig Curtis in Fullmetal Alchemist.

His work is not limited to Japanese animation. Castro has a significant presence in Western animation and live-action dubbing as well. He is the Portuguese voice of Garazeb "Zeb" Orrelios in Star Wars Rebels, Abraham Ford in The Walking Dead, and the Hulk in various Marvel animated productions. His deep, versatile voice has also been featured in major video games, such as Brok in God of War (PS4), Max Payne in the game of the same name, and Wilson Fisk (Kingpin) in the Spider-Man games.

Throughout his career, Mauro Castro has demonstrated a consistent and prolific presence in the Brazilian dubbing industry, collaborating with various dubbing studios and directors in São Paulo. His ability to bring a wide spectrum of characters to life, from gods and monsters to everyday people, has established him as a respected and in-demand talent in the world of voice acting.