Lee Suk-hyeong

as Woon-hee (12 episodes)

as Dae-hoon (4 episodes)

as Detective #2

as Byeong-kwan (병관) (1 episode)

as Jo Pan-shik (young) (16 episodes)

as Jung Bal-san (16 episodes)

as Janggyeong High Class President (1 episode)

as Club President

as Cha Jin-hu (16 episodes)

as Dae-su

as Student (1 episode)

as Byeong Gwan (1 episode)

as Lee Nam-gyeong (2 episodes)

as Woo-hyeok

as Jong-ro

as Kang Do-ha (16 episodes)

as [Mold youth] (1 episode)

as Joo-sung

as Mold Youth

as Kang Byeong-joon (6 episodes)

as Kang Min-u (6 episodes)

as Seong-bum