He is Astro's school teacher (later promoted to principal), and his nickname was Mr. Mustachio or Daddy Walrus. He is then a full-time private eye and is also the uncle of Ochanomizu's assistant, Yuko Kisaragi. Serves as a surrogate father for Astro and Uran, providing guidance and advice when necessary. While gruff and comically short-tempered, he harbours a deep admiration for Astro, seeing him as the son he never had, and even stands up to the formidable Inspector Gumshoe in the boy's defence. "Did you hear that? The superhuman you created is saying it doesn't need us anymore." A private investigator as well as a school teacher and martial arts expert. "Astroboy" anime (2003) Episode 7: "Zero, the Invisible Robot" voice: Gilbert Mack