Detective K: Secret of Virtuous Widow

Kim Myung-min

Kim Min

Oh Dal-su

Han Seo-pil

Han Ji-min

Han Gaek-joo

Lee Jae-yong

Minister Lim

Woo Hyeon

Mr. Bang

Ye Su-jeong

Lim Jwa-soo's Wife

Jung In-gi

Magistrate

Nam Sung-jin

King Jeong-jo

Kim Tae-hun

Im Geo-seon

Choi Mu-sung

Court Priest

Yang Han-yeol

Boy

Choi Jae-sup

Officer

Ryu Hyun-sang

Park Bong-dal

Jung Young-ki

Police

Kim Do-yoon

Police

Lee Seol-gu

Slave

Son Cheol-min

Slave

Lee Chae-eun

Slave

Choi Hyo-sang

Grand Scholar