Han Suk-kyu as Yu Jong-won

Yunjin Kim as Lee Myung-hyun

Choi Min-sik as Park Mu-young

Song Kang-ho as Lee Jang-gil

Yun Ju-Sang as Chief Agent

Park Yong-woo as Eo Seong-sik

Jo Deok-hyeon as Lee Won-doo

Kim Soo-ro as Ahn Hyun-chul

Kim Sang-mi as Soo

Nam Myung-ryeol as Kwan-ho

Hwang Jung-min as Special Investigation Team (cameo)

Ji Dae-han as OP Special Assault Team

Lee Seung-shin as Special Agent, North Korean 8th Squad (uncredited)

Yeo Ho-min as OP Special Assault Team

Park Ji-il as Team Leader, Defense Research Institute

Lee Jong-hyuk as Special Agent, North Korean 8th Squad (uncredited)

Jang Hyun-sung as Special Investigation Team (uncredited)

Lee Pil-mo as Special Agent, North Korean 8th Squad (uncredited)

Son Ho-gyun as Im Bong-ju

Yoo Ha-bok as Bodyguards

Cho Seung-yeon as Special Investigation Team (uncredited)

Lee Seung-yeon as

Yoon Hee-won as OP Special Assault Team

Lee Jung-hoon as

Heo Gi-ho as

Lee Yoon-geon as OP Task Force Agent

Ha Duk-sung as Dr. Min

Lee Do-Hyung as

Han Young-su as OP Agent

Sung Gyu-chan as

Hong Dal-pyo as

Jeon Gi-gwang as

Wu Sang-moo as Newspaper Collection Youth

Ra Kyung-duk as

Jeong Seung-woo as OP Special Assault Team

Choi Yeong as

Park Eun-sook as Lee Bang-hee