Song Young-gyu

as Ryu Gwang-pil

as Kim Min-jung

as Yoon Se-hoon

as Song Young-sik

as Detective Chief

as Choi Yong-nam

as Yoon Hak-young

as [Institution director]

as Park Jong Su

as Jeong Kyung-han

as Han Je Moon

as Baek Yeong-cheol

as Janitor

as Kwak Moon Heum

as Gui-nam

as Ma Seok-koo

as Oh Sang-hoon

as Detective Squad Chief Choi

as Jang Cheol-Min

as Police University Professor

as Ma Do-Nam

as CEO Min Sang-ho

as Min Yi-Bok

as Lawyer

as Jang Sung-Soo

as Byeon Sa Tto

as Hwang Yong-Woo

as Kwi Kyung Kong

as Nam Jong-Gyu

as CEO Han Gwang-Chul

as Big sister Wang

as Tak Young-Jin

as Lee Tae-yong

as Nurhaci

as Director of Planning

as Choi Il-Joong

as Nam Sang-Koo

as Jo Hyeong-Chul

as Pil-Mok

as Kim Ui-su

as Heo Yeongmin