The Suspect

Gong Yoo

Ji Dong-cheol

Hee-soon Park

Min Se-hoon

Won Jin

SA1

Song Boo-gun

Research Agent

Lee Chae Yun

Park Hwi-Soon's daughter

Da-in Yoo

Choi Kyeong-hee

Kim Eui-sung

Deputy department head Shin

Won Hyun Joon

Uniformed policeman

Lee Hyun-Jung

Child who fled North Korea

Jo Jae-yoon

Captain Jo

Jong-ryol Choi

Butler Moon

Won Poong-Yeon

Kim Seok-Ho's underling

Kim Seong-gyoon

Lee Gwang-jo

Jo Sung-ha

NIS director Kim Seok-ho