Movie War Mega Max featured the first seven Kamen Riders (Kamen Rider 1, 2, V3, Riderman, X, Amazon, and Stronger) to commemorate the franchise's 40th anniversary. Trailers for the film shown during airings of Fourze also showed the return of Kamen Rider Double as well as a new form for Kamen Rider OOO. Unlike previous Movie War films, where they were divided into 3 segments, Movie War Mega Max is divided into 5 parts. Like previous Movie War films the secondary Kamen Rider of Kamen Rider Fourze, Kamen Rider Meteor, made his debut in the film.
Tetsu Inada | Kamen Rider 1 (voice) |
Ryosuke Miura | Ankh |
Takahiro Fujimoto | Kamen Rider 2 (voice) |
Hirofumi Tanaka | Kamen Rider V3 (voice) |
Takayuki Masuda | Riderman (voice) |
Isshin Chiba | Kamen Rider X (voice) |
Koji Tobe | Kamen Rider Amazon (voice) |
Hideo Ishikawa | Kamen Rider Stronger (voice) |
Shu Watanabe | Eiji Hino / Kamen Rider OOO |
Asaya Kimijima | Shintaro Goto / Kamen Rider Birth |
Hiroaki Iwanaga | Akira Date / Kamen Rider Proto-Birth |
Atsushi Arai | Miharu Minato / Kamen Rider Aqua |