Son Kyung-hoon (1 episode)

Seong Han-su (1 episode)

McKenna (1 episode)

Woo Myeong Hun (12 episodes)

Self (1 episode)

Bu Sang-gil (16 episodes)

Choi Jin-man (12 episodes)

Detective Jang Mun-jae / Paimon (3 episodes)

Gwang-i

(16 episodes)

Park Se-gyu (16 episodes)

Seo Min-hyuk (12 episodes)

Cheon Sang-u (16 episodes)

Jang Seung-jun (4 episodes)

Sleep Doctor

No Seung Hwan / Nam Dae Moon [Seongju Prison inmate] (16 episodes)

촤병모

Ryu Sung-jae (16 episodes)

Reporter Kim (16 episodes)

Park Jung-je (16 episodes)

박성재 (16 episodes)

Lee Woo-chul (16 episodes)

Jang Bok Su [Gambler] (1 episode)

Mr. Choi [CEO of Heaven Entertainment] (2 episodes)

Yoon Se-jun (12 episodes)

(1 episode)

Choi Byung-mo (1 episode)

Joseon Scholar (1 episode)

Choi Soo-hwan (4 episodes)

Secretary Hwang (16 episodes)

[Head Bodyguard] (36 episodes)

Seok Gwan-Dong (16 episodes)

Kang Joon Suk (5 episodes)

Jong-soo