Tsukasa travels to his home world of the World of Decade, where he discovers the origin of his powers and his true heritage as the leader of Dai-Shocker. The film features all ten of the lead Heisei Kamen Riders, as well as all of the Shōwa period Kamen Riders, leading to a total of 25 Riders.
Osamu Kaneda
Director

Masahiro Inoue
Tsukasa Kadoya / Kamen Rider Decade

Ryouta Murai
Yusuke Onodera / Kamen Rider Kuuga

Kanna Mori
Natsumi Hikari

Kimito Totani
Daiki Kaito / Kamen Rider Diend

Renji Ishibashi
Eijiro Hikari / Doctor Shinigami

Tatsuhito Okuda
Narutaki

Moe Arai
Sayo Kadoya

Ryuichi Ohura
Nobuhiko Tsukikage / Shadow Moon

GACKT
Jôji Yûki
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