Takayuki Tokoro (9 episodes)

Shouji Yuki (9 episodes)

Masatomo Takamine (8 episodes)

Yuichi Chiba (12 episodes)

Shuto Amamiya (8 episodes)

Mob (6 episodes)

Mob

Sakai Reo / "Leo" (10 episodes)

Hayashi Yukiya (10 episodes)

Yumezaki Mikio (12 episodes)

(13 episodes)

Hozumi Yutaka (10 episodes)

Toru Sanada (12 episodes)

Sakyo Shiori (10 episodes)

Tatsuya Yamashiro (20 episodes)

(3 episodes)

(3 episodes)

Jin Makino (1 episode)

Uesugi Kenshin (3 episodes)

Osamu Hujisaki (8 episodes)

Kenshin Uesugi (10 episodes)

Sato Burian (12 episodes)

Mob

Morizono Youhei

Saya's husband/Sota (8 episodes)

Hanabusa Shiro (10 episodes)

進藤優弥

Noburu Tagawa (8 episodes)

Mob (38 episodes)

Kamishimo Nagi (8 episodes)

Yokode Tōru (8 episodes)

Kosuke Sakura

Ken'ya Hioki (4 episodes)

Kinoshita (young)

Go Samejima (24 episodes)

Kohei Imamura

Shinnobu Shinto (16 episodes)

(21 episodes)

Sento Kiryu / Kamen Rider Build

Tooru Yokode (4 episodes)

(10 episodes)

Sento Kiryu / Kamen Rider Build

Sento Kiryu / Kamen Rider Build

Sento Kiryuu / Kamen Rider Build

Sento Kiryu / Kamen Rider Build

Hatsu Ueno (10 episodes)

Sento Kiryu / Kamen Rider Build (2 episodes)

Sento Kiryuu · Kamen Rider Build

Sento Kiryuu · Kamen Rider Build / Self

Sento Kiryu / Kamen Rider Build

Sento Kiryu / Kamen Rider Build (3 episodes)

Sento Kiryuu / Kamen Rider Build

Sento Kiryu / Kamen Rider Build (49 episodes)

Sento Kiryu / Kamen Rider Build (1 episode)

Sento Kiryuu / Kamen Rider Build (49 episodes)

Kamen Rider Build (voice) (1 episode)

Sento Kiryu / Kamen Rider Build (2 episodes)

Kamen Rider Build (voice)

(10 episodes)