Great Leader of Shocker

The Great Leader of Shocker is the overarching antagonist of the entire Kamen Rider franchise, first appearing as primary antagonist of the original 1971 Kamen Rider series, as well as the Showa continuity of Kamen Rider as a whole. He is a mysterious entity who is force behind nearly every evil organization the Kamen Riders have faced. His ultimate goal is to conquer the world and convert the entire human race into kaijin, uniting the world as one being.

Following his original defeat, later incarnations of him would go on to serve as the main antagonists of several other Showa Kamen Rider series. He eventually returns as the main antagonist of the crossover film, Let's Go Kamen Riders and the main antagonist of the film Super Hero Taisen GP: Kamen Rider 3.

He was previously voiced by the late Gorō Naya in most of his appearance and incarnations, and is currently voiced by Tomokazu Seki, who also voiced Rob Lucci in One Piece and Gilgamesh in Type-Moon franchise.

Known Aliases & Reincarnations of the Great Leader

 * Alias
 * Great Leader of Shocker
 * Great Leader of Gel-Shocker
 * Reincarnation
 * Great Leader of Destron
 * Great Leader of Black Satan
 * Great Leader of Delza Army
 * Great Leader of Neo-Shocker
 * Emperor Crisis (speculated)
 * The Generalissimo of Badan
 * Tsukasa Kadoya/Kamen Rider Decade (rumored)