박 대통령의 암살 이후, 계엄령이 선포된다. 국군보안사령관 전두광과 그를 따르는 장교들에 의해 쿠데타가 일어나고 군대가 정치적 행동을 해선 안된다고 믿는 완고한 군인인, 수도방위사령관 이태신은 전두광을 막기 위해 그와 맞서기로 한다. 그들의 갈등이 점차 심화되고, 대혼란 속에서 모두가 갈망하던 서울의 봄은 예상치 못한 방향으로 흘러간다.
Hwang Jung-min
Chun Doo-gwang
Jung Woo-sung
Lee Tae-shin
Lee Sung-min
Jung Sang-ho
Park Hae-jun
Roh Tae-geon
Kim Sung-kyun
Kim Jun-yeob
Kim Eui-sung
Oh Gook-sang
Jeong Dong-hwan
Choi Han-gyu
Ahn Nae-sang
Han Young-goo
Yoo Sung-joo
Min Seong-bae
Choi Byung-mo
Do Hee-Cheol
Park Hoon
Moon Il-pyeong
Lee Jae-yoon
Lim Hak-joo
Kim Sung-oh
Kim Chang-se
Nam Yoon-ho
Kang Dong-chan
Hong Seo-jun
Ha Chang-soo
Ahn Se-ho
Jang Min-gi
Jung Hyeong-seok
Park Gi-hong
Park Jeong-hak
Mo Sang-don
Park Won-sang
Go Jae-young
Jeong Man-sik
Gong Soo-hyeok
Jung Hae-in
Oh Jin-ho
Lee Jun-hyuk
Kwon Hyung-jin
Park Hyeok-min
Jin Young-do
Yum Dong-hun
Bae Song-hak
Jeon Jin-gi
Hyun Chi-sung
Cha Rae-hyung
Heo Dong-yoon
Kwon Hyuk
Cho Woo-taek
Han Chang-hyun
Tak Jae-oh
Jeon Soo-ji
Lee Tae-shin's wife
Seo Gwang-jae
Prime minister
Im Cheol-hyung
Chief Kang
Hyun Bong-sik
Joo Wan-yong
Gwag Ja-hyeong
Colonel Lee
Jeon Woon-jong
Major Byeon
Lee Seung-hee
Park Su-jong
Kim Ki-moo
Yoon Woo-myeong
Park Jeong-pyo
Head of a guardhouse
Kwak Jin-seok
Lee Yong-soo
Han Kyu-won
Shon Gyu-won
Woo Mi-hwa
Oh Gook-sang's wife
Cha Gun-woo
Kim Dong-gyu
Kim Jung-pal
Seo Jung-phil
Hwang Byeong-guk
Hwang Byeong-geun
Choe Min
Oh Goo-min
Kang Gil-woo
Major Seol
Ahn Seong-bong
Ko Eun-tae
Baek Jin-wook
Eavesdropping agent
Paul Battle
American Ambassador
Brad Curtin
Commander Beckam
Yoon Dae-yeul
Warrant officer Yang
Choi Ji-ho
Cho Ji-ho
Kim Seung-hwan
Ko Seung-hwan
Lee Soon-poong
General Ma
Kwon Hyeok-beom
Lieutenant colonel Hong
Kim Beom-soo
Jo Min-beom
Kwon Da-ham
First lieutenant Pyeon
Lee Ga-kyung
Administrative officer
Bae Ki-beom
Deputy Minister of the Interior
Lee Mi-ra
Banquet hall emcee