Act 4 (Part 1): "Death Fight! Confront the Vengeful Demon KK-Aug!! Rider vs. the Second Grasshopper-Aug"

Sosuke Ikematsu

Takeshi Hongo / Kamen Rider No. 1

Tasuku Emoto

Hayato Ichimonji / Kamen Rider No. 2

Minami Hamabe

Ruriko Midorikawa

Mirai Moriyama

Ichiro Midorikawa / Kamen Rider No. 0

Shinya Tsukamoto

Hiroshi Midorikawa

Yutaka Takenouchi

Tobei Tachibana

Takumi Saitoh

Jiro Taki

Tori Matsuzaka

K (voice)

Kanata Hongo

Kamakiri Chameleon Augment-01

Mikako Ichikawa

Shoko Midorikawa