Sung Si-hoon (10 episodes)

Self (10 episodes)

Park Geun-tae (16 episodes)

Man-sik

Lee Cheol-i

(1 episode)

(1 episode)

Kim Sung-ho

Song Min Ho (48 episodes)

Cha In-Tae

Kim Joo Won (3 episodes)

(1 episode)

(15 episodes)

(9 episodes)

Sang-won

Kang Eun-hyuk (16 episodes)

Lee Min-chul (1 episode)

Soo-young

Cha Seung-pyo (16 episodes)

Section Chief Kim

(1 episode)

Kim Eung Seok (8 episodes)

Kang Dong-Soo (20 episodes)

Mang-taek

Soo-Hwan

Ha Dong-ah (50 episodes)

(7 episodes)

Seo Sung-joon (45 episodes)

Choi Wook-hwan

Himself (3 episodes)

Himself (85 episodes)

Joon-seo

himself (1 episode)

Eun-cheol

Jang Yeong-sil (86 episodes)

Yang Man-oh (8 episodes)

Ki Sung-Hyun

(16 episodes)

Himself (2 episodes)

(16 episodes)

Gap-ba

경민 - 기억이 들린다 편

Yu-won

Youg-deok

Choi Byung-hoon