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...
Eiji Hino / Kamen Rider OOO
Ankh / Shingo Izumi
Hina Izumi
Dr. Akira Date / Kamen Rider Birth
Shintaro Gotou / Kamen Rider Proto Birth
Erika Satonaka
Chiyoko Shiraishi
Kousei Kougami
Uva
Kazari
Gamel
Mezool
Mezool (voice)
Ancient OOO (voice)
Goda (voice)
