Park Choong-seon

as Lee Seok-man (11 episodes)

as Taxi driver (1 episode)

as Baek

as Ha-eun's Father

as Baek Sang-Goo (124 episodes)

as Il Cheung Construction & Trading manager (1 episode)

as President of the association

as Ma Gang-seok (16 episodes)

as Jung Man-in

as San-seong

as Young Hee Bo (10 episodes)

as President

as President (4 episodes)

as Kang Chul's Father (16 episodes)

as Director Seong

as No Kyung Seok (16 episodes)

as Bum-sil's Father

as Vice Envoy Yeom

as Kim Jung-sup (16 episodes)

as Director of the headquarters

as Se-he's father

as Detective No (1 episode)

as Seung Jeon-saek

as Detective Chief