Wataru Takagi (高木 渉, Takagi Wataru; born July 25, 1966) is a Japanese actor and voice actor from Chiba Prefecture affiliated with Arts Vision. He is best known for his roles as One Piece (as Bellamy), Bleach (as Ganju Shiba), Detective Conan (as Genta Kojima and Wataru Takagi), After War Gundam X (as Garrod Ran), Slayers Try (as Valgaav), the Beast Wars: Transformers series (as Cheetor), Great Teacher Onizuka (as Eikichi Onizuka), Hajime no Ippo (as Masaru Aoki), Naruto (as Obito Uchiha), the fifth series of GeGeGe no Kitarō (as Nezumi Otoko), Yes! PreCure 5 (as Bunbee), and JoJo's Bizarre Adventure: Diamond Is Unbreakable (as Okuyasu Nijimura). Takagi is also the official Japanese voice of Daffy Duck.
Source: “Wataru Takagi”, English Wikipedia (CC BY-SA 4.0), excerpt