Saber + Zenkaiger: Superhero Senki Main Trailer uploaded today gave the list of characters appearing in the movie including reprisals.
Actor Ayumi Tanida (24 JAPAN, Shitamachi Rocket) will play the role of the main villain of the movie - Asmodeus. He will unleash the Forbidden Book from the Agastia Base leading to chaos between Story World & the Real World.
Naoya Makoto will only reprise as the Voice of Akarenger in the movie. Akarenger will team up with Kamen Rider 1 to fight against all the enemy army.
All four Imagin Voice Actors - Seki Toshihiko (Momotaros), Koji Yusa (Urataros), Masaki Terasoma (Kintaros) & Kenichi Suzumura (Ryutaros) are confirmed to reprise their respective roles from Kamen Rider Den-O.
Kenjiro Ishimaru will reprise as Owner from Kamen Rider Den-O & Takashi Ukaji as Kousei Kougami from Kamen Rider OOO.
Tetsu Inada will reprise his role as Doggie Krugger / Deka Master.
MAO (Mao Ichimichi) & Hiroshi Kamiya will reprise their Kyuranger roles as Washi Pink & Ryu Commander respectively.
Takahashi Fumiya's (Aruto Hiden / Kamen Rider Zero-One) voice was also heard in the trailer. But it is yet to be announced by Toei on his reprisal.
Toei had promised that there will be still some more cast announcements coming up soon. This announcement might cover Takahashi Fumiya's involvement and might make us clear if Kamen Rider Zi-O, Shinken Green & Kiramai Blue will be reprised by their original actors.