Choi Jin-ho

Yoon Tae-sik • 12 episodes

Dokgo Young-hoon • 3 episodes

Chairman Bok • 12 episodes

Mun Jeong-hun • 12 episodes

Shim Seung-bo • 12 episodes

Kim Chang-yi • 123 episodes

Han Ki-hwan • 16 episodes

Jun-cheol

Lee Mok-yo

Director of NIS

Son Min Ho • 16 episodes

Park Yeong-choon

Lee Se-hun • 24 episodes

Park Jeong-gi, Chief Presidential Secretary

Ahn Min-Shik • 16 episodes

Do Yun-wan • 16 episodes

Jang Hyung-sik

Kim Jeon-moo

Mr. Min Byeong-uk • 16 episodes

Park Seung-gu

Baek Jong-Sik • 20 episodes

Yi-soo

Choi Dong-wook • 20 episodes

Lee Sang-jin

Eye

Combined Forces Command Controller

Prosecutor

Planning Director

Dr. Park

Kim Si-hoo

Han Jun-seok

Firearms Shop Owner (uncredited)

Planning Director

Chang-jun

Doctor Na Young-soo

PD Kim