Kippei Fujimura (12 episodes)

Kenta Yamamoto (12 episodes)

Maeda Tadashi (8 episodes)

Tadamitsu Ooka

Support Role

(6 episodes)

Kobato Uranishi (8 episodes)

Matsui Tokio [Patient] (12 episodes)

Yuta Hosoda

(1 episode)

Wataru Kusanami

Mamiya

(1 episode)

Henmi Shigeru (6 episodes)

Kyôsuke Hori (7 episodes)

Kunihiko Yukawa (1 episode)

Kudo

(8 episodes)

Kazuma Kiyokawa

Teruyuki Harada (10 episodes)

(6 episodes)

Argos / Kamen Rider Dark Ghost & Extremer

Argos (1 episode)

Dark Ghost (voice) (1 episode)

Argos (3 episodes)

Zera

(8 episodes)

Kuwata Kazuhito (9 episodes)

Junichi Ogata (1 episode)

Hirato Shuhei

Yuichi Suzuki

Makoto Kawamura (1 episode)

Inukichi

Shō Takebayashi (22 episodes)

Tonomine Hajime (16 episodes)

Takahashi Riku

Riku Takahashi (11 episodes)

Suzuki Gota (6 episodes)

神崎明 (10 episodes)

Kaoru

Senri Nakao (12 episodes)

Jiro Tanaka (11 episodes)

Daisuke (1 episode)

Takahashi Noriyuki (11 episodes)

Macky

Seito Kobayashi

Atsushi

Izumi Mamoru

Okura Masaya (4 episodes)

Kaji Hiroshi (4 episodes)

Michio Terasawa

Hideki Sano (12 episodes)

(138 episodes)