Kenjirō Ishiyama is a Japanese voice actor (seiyū) and actor, born on March 11, 1958. His career, which began in the 1980s, is distinguished by a deep, authoritative, and highly versatile voice, making him a prominent figure in the world of animation. He is internationally renowned for voicing iconic characters such as the wise and fatherly Jet Black in *Cowboy Bebop* and the exuberant Genta Kojima in the long-running series *Detective Conan*. Other notable roles include Joseph Joestar in *JoJo's Bizarre Adventure: Stardust Crusaders*, Kozuki Oden in *One Piece*, and Professor Oak in various media within the *Pokémon* franchise. His work also extends to the dubbing of foreign films and numerous video games. For his significant and enduring contribution to the industry, he was honored with the Kazue Takahashi Award at the 15th Seiyu Awards in 2021, a prestigious recognition of his career and his impact in the world of voice acting.