During the Joseon Dynasty, the Secret Royal Inspectors are the eyes and ears of the king. They travel the provinces undercover and listen to the plight of the common people, investigating abuses and corruption of government officials.
as Sung Yi-gyum
as Hong Da-in
as Sung Yi-beom
as Kang Jong-Gil
as Park Chun-sam
as Kang Soon-ae
as Jang Tae-Seung
as Kang In-Chung
as Kim Byeong-Geun
as Kim Man-Hee
as Seo Yong
as Sa-Wol
as Choi Do-Gwan
