Jabarkan Pemeran dari Detective K: Secret of the Virtuous Widow

Kim Myung-min ... Detektif K

Lee Jae-Yong – Minister Lim

Kim Tae-Hun – Lim Geo-Sun

Ye Soo-Jung – Istri petugas publik Lim

Choi Moo-Sung – Petugas publik

Jeong In-Gi – Gubernur desa

Jung Jae-Sung – Gubernur desa Jeokseong

Choi Jae-Sup – Petugas publik desa

Moon Kyung-Min – Pandai besi tua

Nam Sung-Jin – Raja Jeongjo

Woo Hyeon – Tuan Bang