The Secret Royal Inspector and Jo Yi [Russian]

Taecyeon

Ra Yi-eon

Kim Hye-Yoon

Kim Joy

Jung Soon-won

Cha Mal-jong

Jae-Kyoon Lee

Park Tae-seo

Chae Won-Bin

Bi Ryung

Chae Won-Bin

Hwang Bo Ri

Tae-Hwan Choi

Park Do-soo

Bo-seok Jeong

Park Seung

Choong-seon Park

Shim Tae-son (Hongmungwan director)

Nam Mi-Jung

Jang Pat-Soon

Ko Han-min

Royal scholar

Park Young-soo

Merchant Kwon [Rice buyer]

Jeon Jin-oh

Con Man

Jo Ji-hyun

Beef customer's servant

In-Kwon Baek

Bandit

Lee Jae-woo

Tae-seo's friend

Kwon Ban-suk

Coin chest courier

Oh Kyu-taek

Butcher

Hong Dong-Yeong

Crown Prince (young)