Choi Hong-il

as Cosmetics Company CEO (1 episode)

as Kim Yong-bok (2 episodes)

as Choi Yeong-han / Recycling Plant Worker (1 episode)

as Park Dong-sik (6 episodes)

as Ryu Il-ho (16 episodes)

as Head of the Investigation

as Ji-man

as Mr Han

as Ha Taek-soo (16 episodes)

as Jang So Chul (2 episodes)

as Profiler Suk (7 episodes)

as Lee Kyung-jin

as Hee-yeol's Father

as Ahn Su-young (20 episodes)

as Dong-ju's Father

as Police Commissioner

as Hunter

as Woo-ma king

as Kim Jun-ho (1 episode)

as Mid-age man

as Nobel Family's Son