Such a Close Traitor

Han Suk-kyu

Jang Tae-soo

Chae Won-Bin

Jang Ha-bin

Yeri Han

Lee Eo-jin

Yeon-su Oh

Yun Ji-soo

Jaechan Yoon

Go Se-ho

Roh Jae-won

Koo Dae-hong (Inspector)

Yoon Kyung-ho

Oh Jeong-hwan (Head of homicide squad)

Lee Shin-Ki

Kim Yong-soo (Police officer)

Lee Kyo-Yeob

Jo Kyung-bin (Detective)

Yu Eui-tae

Park Jeon-tae (High school teacher)

Kim Jeong-jin

Choi Yeong-min

Yu-hwa Choi

Kim Sung-hui

Han Soo-a

Song Min-ah

Son Sook

Ha Bins grandmother

Park Eun-woo

Park Ji Yeon

Lee Ye-Joo

Jang Ha-bin (child)

Moon Byung-joo

Police officer

Na Do-yool

Park Jae Hun [Police violent crimes team 1]