Choi Jong-won

as Captain Uhm

as Old Man (1 episode)

as Kang In-Chung (16 episodes)

as Heungseon Daewongun (24 episodes)

as Goo Yong-Chan (16 episodes)

as Chairman Kwon (16 episodes)

as Mal-dong (말동)

as Go Dae-Chun (20 episodes)

as Kang Man

as Min Seong Taek

as Ja-woon

as Professor Noh

as Mr. Sin

as Min-joo's Father

as Detective squad chief

as Messenger Choi

as Jang Deok-bae

as Han Myeong Hoe (186 episodes)