Gong Yoo

Seok-woo

Kim Su-an

Soo-ahn

Jung Yu-mi

Sung-gyeong

Ma Dong-seok

Sang-hwa

Choi Woo-shik

Yeong-gook

An So-hee

Jin-hee

Kim Eui-sung

Yong-suk

Ye Su-jeong

In-gil

Park Myung-shin

Jong-gil

Choi Gwi-hwa

Homeless Man

Jeong Seok-yong

Captain of KTX

Kim Chang-hwan

Kim Jin-mo

Jang Hyuk-jin

Ki-chul

Shim Eun-kyung

Stowaway

Lee Joo-sil

Seok-woo's Mother

Kim Jae-rok

Mr. Kim

Cha Chung-hwa

Mountaineering Woman

Kim Won-jin

Embarrassing Youth

Han Ji-eun

Earphones Girl

Han Sung-soo

Train Attendant

Lee Jung-ok

Suit

Kim Ju-hun

Baseball Team Manager

Kim Keum-soon

Survivor

Chyu Kwang-hyun

Infected

Jung Young-ki

Captain Min (voice)

Ok Joo-ri

Survivor

Woo Do-im

Cabin Attendant Min-ji

Song Ji-hyuk

Baseball Team

Kim Woon

Infected (uncredited)

Jeon Ye-eun

Infected (uncredited)

Baek Seung-hwan

Survivor (uncredited)

Yeon Sang-ho

Control Room (uncredited)

Choi Woo-sung

Infected (uncredited)

Lee Tae-yoon

Survivor (as Tae-Yoon Lee)

Kim Tae-yun

Student