Negataros/Kamen Rider Nega Den-O

Kamen Rider Nega Den-O (仮面ライダーネガ電王 Kamen Raidā Nega Den'ō, lit. "Nega Power King") is the fictional villain of the Japanese 2008 Kamen Rider Series movie, Kamen Rider Den-O & Kiva: Climax Deka.