Detective K: Secret of Virtuous Widow

In 1782, King Jeong-jo of Joseon asks detective K to investigate a series of murders related to a case of corruption within the government.

• 
  Kim Sok-yun

• 
  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