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In the anime series Gintama, the character Zenzo Hattori is voiced by the Japanese voice actor Keiji Fujiwara. Fujiwara is a prolific voice actor who has voiced characters in a wide variety of anime series, including Code Geass, Fullmetal Alchemist, and Naruto. He is also known for his work in video games, such as the Persona series and the Final Fantasy series.