Kamen Rider Den-O (仮面ライダー電王, Kamen Raidā Den'ō, Masked Rider Den-O) is the seventeenth installment in the popular Kamen Rider Series of tokusatsu programs. It is a joint collaboration between Ishimori Productions and Toei. It premiered January 28, 2007 on TV Asahi, and concluded airing on January 20, 2008. Its lead actor Takeru Satoh is the first Kamen Rider Series lead born in the Heisei period of Japanese history.

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