Hwang Jung-min as Heuk Geum-seong / Park Seok-yeong

Lee Sung-min as Ri Myeong-woon

Cho Jin-woong as Choi Hak-seong

Ju Ji-hoon as Section Chief Jeong Moo-taek

Jeong So-ri as Lee Hong-seol

Kim Hong-pa as Kim Myung-soo

Gi Ju-bong as President Kim Jong-il

Kim Eung-soo as Department Head Kim

Chae Yong as Hwang Byeong-cheol

Park Sung-woong as Han Chang-joo

Park Jin-young as Kim Jang-hyeok

Nam Moon-chul as National Assembly Member Park

Choi Byung-mo as National Assembly Member Yoo

Kim In-woo as Kiyohara

Kwak Ja-hyung as Jang Seong-hoon

Kim So-jin as Chang-joo's Wife

Jeong Gi-seop as NIS Planning Agent #1

Lee Seung-joon as Security Agent #1

Choi Jeong-in as Seok-yeong's Wife

Kim Hyun as Real Estate Agent

Min Moo-je as Southern Spy

Geum Sae-rok as President's Bodyguard #3

Lee Dong-hee as Photographer

Kang Jun-seok as Panmunjeom NKPA

Park Won-Hee as Asylum Commander

Hong Gi-jun as Successor Officer

Kim Kyu-baek as Army Personnel

Oh Gyeong-hwa as Market Woman

Kim Woo-hyeon as Reporter

Seol Chang-hee as Reporter

Oh Jin-ha as Ad Studio Reporter #7

Lee Hyo-ri as Self (cameo)

Kim Byeong-ok as Dr. Jang (cameo)

Kim Dae-jung as Self (archive footage) (uncredited)

Lee Hoi-chang as Self (archive footage) (uncredited)

Hwang In-sung as Announcer

Park Woo-jae as Safe House Guard

Yoon Jae-in as Reporter

Park Kyung-chan as Colonel

Heo Seung as Officer

Lee Sang-won as Safe House Guard