The year is 2021 and the world is in a state of chaos and fear. The ancient king OOO has come back to life after 800 years of dormancy. As the Kougami Foundation mounts a human resistance, Eiji Hino returns to Japan, believing he has at last found the means to revive the Greeed Ankh...
渡部秀
as Eiji Hino / Kamen Rider OOO
三浦涼介
as Ankh / Shingo Izumi
高田里穂
as Hina Izumi
岩永洋昭
as Dr. Akira Date / Kamen Rider Birth
君嶋麻耶
as Shintaro Gotou / Kamen Rider Proto Birth
有末麻祐子
as Erika Satonaka
甲斐まり恵
as Chiyoko Shiraishi
宇梶剛士
as Kousei Kougami
山田悠介
as Uva
Taito Hashimoto
as Kazari
松本博之
as Gamel
矢作穂香
as Mezool
