Yukinori Ishizuka (石塚 運昇 Ishizuka Yukinori, born May 16, 1951), better known as Unshō Ishizuka (石塚 運昇 Ishizuka Unshō), is a Japanese voice actor from Katsuyama, Fukui. He is currently affiliated with Aoni Production and is known for providing the voice of both the Narrator and Professor Oak on the Japanese anime series, Pokémon. He is the Japanese voice of Don Wei in Oban Star-Racers.
In addition to that, he regularly appears in both the Japanese and English-language versions of the Pokemon anime, voicing Onix, Steelix and numerous other Pokemon. Ishizuka is famously known for his deep, strong voice and is often cast in the role of older mature male characters, such as Jet Black from Cowboy Bebop, Eugene Gallardo from Tales of Rebirth and Captain Matthews in the Xenosaga trilogy. He is also the Japanese dub voice of Captain Gantu in every version of Lilo and Stitch to date.