Great Leader JUDO

Great Leader JUDO (大首領 JUDO) - The main antagonist of the series, he is the same "Great Leader" who was the supreme leader of all the evil organizations the previous Kamen Riders faced in the past. He leads the Badan Empire and is worshiped like a god by his followers. His preferred forms are a giant silver skull and a golden version of ZX called Susanoo (スサノオ), with the ability to transform into eight Showa Kamen Riders akin to Kamen Rider Decade's ability to transform into the nine Heisei Riders. He has his own language, which he can telepathically compel others to understand.

Trivia

 * Along with Amaterasu and Tsukuyomi, his rider name "Susanoo" is based on the Japanese mythological deity of the same name