Hiroshi Fujioka、as Hongo Takeshi / Kamen Rider 1 (Main Character of the movie)
Hiroshi Fujioka, had recently transformed into Kamen Rider 1 in Heisei Rider Vs Showa Rider: Kamen Rider Taisen feat. Super Sentai so it's not so surprising to see him in Transform but what's surprising is he is going to transform into a New form of Kamen Rider 1 & it uses a New Typhoon (Rider Belt).
That's not everything. He also gets a New Rider Bike called New Cyclone.
Natsumi Okamoto as Mayu Tachibana (Heroine of the movie)
Ren Osugi as Ambassador Hell (Main Villain of the movie)
Nova Shocker is formed by the members who got separated from Shocker. Instead of world domination by force as that of Shocker they aim for seizure of World by economy. Nova Shocker has Three Commanders → Urga, Igura & Buffal. The Combat men are much different than that of the original. Their suits is based on the suits of the soldiers & they also use weapons (probably a Gun).
It is not known whether they are remodeled or they have created any Kaijin. By looking at them & also their thinking of seizure of world by economy seems more like they are humans.
Tsuyoshi Abe as Urga
Nao Nagasawa as Igura
Kozo Takeda as Buffal
Kamo Mental (Guest Characters)
Owarai Combi Kamo Mental's Udai Iwasaki & Yusuke Makio. Their role in the movie might be a minor.
Shozo Iizuka / Unknown Voice Role
Koji Ishii / Unknown Voice Role
Kamen Rider Ghost Cast
Videos by Cast
Decisive Battle: Kotaro (Koguma Sky Blue) Vs Legendary Man Tsurugi (Houou Soldier)
Hammie-chan plays with McDonald's Happy Set Kyutama
Yukari Taki (with Atsuhiro Inukai) Says tomorrow is Build Episode 3 After taking Taki Photo