Cast

• Gong Yoo — Seok Woo
• Jung Yu-mi — Sung Gyeong
• Ma Dong-seok — Sang-Hwa
• Kim Su-an — Soo-an
• Choi Woo-shik — Yeong Gook
• Ahn So-Hee — Jin-hee
• Kim Eui-sung — Yon-Suk
• Choi Gwi-hwa — Homeless man
• Jang Hyuk-jin — Ki-chul
• Park Myung-shin — Jong-gil
• Ye Soo-jung — In-gil
• Jung Suk-yong — Captain of KTX
• Shim Eun-kyung — Runaway Girl
• Lee Joo-sil — Mrs. Woo
• Nam Sang-woo — Infected
• Terri Doty — Seong-kyeong (voice)
• Kim Chang-Hwan — Kim Jin-mo
• Kim Joo-hun — Baseball Team Manager
• Song Ji-hyuk — Baseball Team Member
• Woo Do-im — Cabin Attendant Min-ji
• Ok Joo-ri — Survivor
• Kim Jae-rok — Mr. Kim
• Oh Tae-eun — Survivor