Lee Je-yeon

Park Hyuk Jun • 2 episodes

Park Sung-jae

Choi Yun-geun • 3 episodes

Satan • 53 episodes

Lee Bang Chul • 1 episodes

Shin Seung Joo (young) • 1 episodes

Jung Soo-bin • 16 episodes

[Music teacher] • 1 episodes

Jong-goo

[Hongjae High School Music teacher] • 1 episodes

Dong-jun

Jin Ki-cheol • 16 episodes

Bum-suk

Seo Jae Ha • 16 episodes

Ki Joon-Soo • 32 episodes

이제연 • 12 episodes

Public Security Elite Agent (Sewage Culvert)

Suspended Special Forces Soldier

Kim Sung-kyu • 20 episodes

Young Cheol • 32 episodes

Kim Jin-ho

Wild Horse • 1 episodes