Faduli Costa, also known professionally as Fadu Costha, is a Brazilian voice actor based in São Sebastião do Paraíso, Minas Gerais. He has built an extensive career dubbing anime, video games, and live-action films into Brazilian Portuguese.

His body of work in anime is vast and includes many prominent series. He voices Professor Mayzel in the 2022 ONA series Spriggan. He is well-known for his long-standing association with the Dragon Ball franchise, having voiced the character Shu across multiple series and films including the new dub of the original Dragon Ball, Dragon Ball GT, Dragon Ball Super, and several movies such as Dragon Ball Z: Battle of Gods and Dragon Ball Super: Broly. He has also taken on the roles of Mr. Satan in Dragon Ball Z Kai and Mestre Kame in the VHS dub of Dragon Ball Z: Dead Zone. In the One Piece franchise, he has voiced numerous characters including Lucky Roux in the older dub, Gaimon in the new dub, Saint Marcus Mars, and Sanjuan Wolf.

Costa has taken on leading roles in major series. He voiced Kikuchiyo in Samurai 7 and Preguiça (Sloth) in Fullmetal Alchemist: Brotherhood. He played Professor Ochanomizu in the ONA Pluto and provided the voice of Dr. Dr. Zarolho in The Super Milk-chan Show. His work in the Pokémon anime includes voicing Captain Stern and Contest judge Raoul Contesta. In the Naruto series, he is the voice of the beloved ramen chef Teuchi across the original series, Shippūden, and multiple films. He also took over the role of Mayuri Kurotsuchi in the latter half of Bleach. Other notable anime roles include Mu in Monster Rancher, Grey Wolf and Chariot in the same series, and characters in JoJo's Bizarre Adventure: Diamond Is Unbreakable, Dorohedoro, and Record of Ragnarok.

Beyond anime, his voice work extends to video games and animated series. He voiced Oswald B. Thompson in the Brazilian Portuguese version of the 2016 video game Planet Coaster. He is also recognized for his work in Western animation, such as the character Algeberto in the Brazilian series Buzzu na Escola Intergaláctica and as the voice of Tivô Ford in the Brazilian dub of Gravity Falls. His live-action dubbing credits include the role of Edward Hamilton Clark in the 2024 film The Substance and characters in the live-action adaptations of Cowboy Bebop and Fullmetal Alchemist.

Throughout his career, Costa has frequently collaborated with a consistent group of fellow Brazilian voice actors and studios, including Luiz Laffey, Wellington Lima, Ricardo Sawaya, and Alexandre Marconato, among others. His notable achievements include voicing iconic characters across several of the world's most enduring and popular anime franchises for decades.