Lee Seung-joon

as Yeo Shin (6 episodes)

as Priest (2 episodes)

as Hyeon Sang-cheol (12 episodes)

as Woo-sik's student

as Jang Hyun-chul (12 episodes)

as Ji Gyung-hun (12 episodes)

as Choi Kyung-jong (16 episodes)

as Yun Byeong-geun (7 episodes)

as Psychiatrist (7 episodes)

as Jung Bong-wan (12 episodes)

as Kang Bong-go (16 episodes)

as Cha Joo-man (16 episodes)

as Koh You's father (8 episodes)

as Lee Byeong-joon (12 episodes)

as Detective Lee

as Doctor Lee

as Eom In-chan (12 episodes)

as Jung Seung-jun / Jeong Dang-myeong (16 episodes)

as Kang Chung-Mo (16 episodes)

as Kim Gi-ha (16 episodes)

as Charlie Jung (3 episodes)

as Choi Jin-moo (12 episodes)

as Kim Chul-woong (32 episodes)