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Professor Hiroshi Midorikawa (緑川博士 Midorikawa Hakase, 1) - A former Shocker scientist who helped Takeshi Hongo escape, and thus was killed by the Shocker agent Spider Man. He had a daughter, Ruriko Midorikawa.
Behind the scenes
Professor Midorikawa was played by Kiyoshi Nonomura (野々村潔 Nonomura Kiyoshi).