- Team Revice - Kentaro Maeda as Ikki Igarashi, Subaru Kimura as Vice, Wataru Hyuga as Daiji Igarashi, Ayaka Imoto as Sakura Igarashi, Noritaka Hamao as George Karizaki, Yui Asakura as Aguilera, Hayata Seki as Olteca, Claud Hachijoin as Julio, Junya Komatsu as Hiromi Kadota, Kazuya Tanabe as Yujiro Wakabayashi, Emi Kurara as Yukimi Igarashi, and Shigeyuki Totsugi as Genta Igarashi
- Team Saber - Syuichiro Naito as Touma Kamiyama, Takaya Yamaguchi as Rintaro Shindo, Asuka Kawazu as Mei Sudo, Ryo Aoki as Kento Fukamiya, Yuki Ikushima as Ryo Ogami, Eiji Togashi as Ren Akamichi, Hiroaki Oka as Tetsuo Daishinji, Tomohiro Ichikawa as Yuri, Mei Angela as Reika Shindai, Ken Shonozaki as Ryoga Shindai, and Rina Chinen as Sophia
As for staff, Kotaro Nakagawa (Kamen Rider Revice) and Kosuke Yamashita (Kamen Rider Saber) will return to work on the film's music, and the current Kamen Rider franchise action director Jun Watanabe and special effects director Hiroshi Butsuda will work on the film as well. Written by Nobuhiro Mouri (Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle) and directed by Takayuki Shibasaki (Super Hero Taisen GP: Kamen Rider 3), Kamen Rider Beyond Generations is set to premiere this December 17th.