Kim Nam-gil

Jae-hyuk

Kim Joo-hyun

Yeon-joo

Kim Young-ae

Mrs. Seok

Moon Jeong-hee

Jeong-hye

Jung Jin-young

Pyung-sub

Kim Dae-myung

Gil-seop

Bae Gang-Yoo

Min-jae

Kim Myung-min

President

Lee Kyung-young

Prime Minister

Yoo Seung-mok

Mr. Kam

Kang Shin-il

Mr. Kong

Kim Se-dong

Mr. Nam (uncredited)

Song Young-chang

New Director at Nuclear Power Plant (uncredited)

Kim Young-woong

Mr. Hwang (uncredited)

Kim Han-jong

Jin-taek

Kwak In-joon

Head of Foreign Cooperation (uncredited)

Park Sun-Hee

Mr. Gam's Wife (uncredited)

Gong Jeong-hwan

Senior Presidential Secretary (uncredited)

Kim Hye-eun

First Lady

Baek Do-bin

Chief Rescuer (uncredited)

Hong Seok-bin

Doctor

Kim Keum-soon

Villager

Oh Ye-seol

New Nurse

Park Pal-Young

Minister of Commerce, Industry and Energy

No Kang-min

Young Jin-taek

Park Joon-Young

Storage Tank Recovery Team

Jo Han-chul

President of Shimwon E&C

Jung In-gi

Fire Marshal

Son Jong-hak

President of Korea Hydro & Nuclear Power

Song Young-chang

New Director of the Headquarters

Kim Jong-goo

Nuclear Safety Committee Chairman

Shim Young-Min

National Security Chief