Ha Jung-woo character Lee Jung-Soo
Bae Doo-na character Se-Hyun
Oh Dal-su character Dae-Kyung
Shin Jung-geun character Captain Kang
Nam Ji-hyeon character Mi-Na
Jeong Seok-yong character Chief Choi
Lee Han-seo character Soo-Jin
Kim Hae-sook character Minister
Yoo Seung-mok character Reporter Jo
Park Hyuk-kwon character Government official (uncredited)
Cho Hyun-chul character Young rescuer (uncredited)
Lee Dong-jin character Radio DJ (uncredited)
Lee Cheol-min character Driller captain (uncredited)
Han Soo-hyun character Drone technician (uncredited)
Kim Seung-hoon character Public hearing moderator (uncredited)
Ye Soo-jung character Old mother (uncredited)
Jin Yong-uk character Construction worker (uncredited)
Lee Dong-Yong character Construction worker (uncredited)
Joo Suk-tae character employee of Korea Expressway Corporation (uncredited)
Ahn Se-ho character Driller (uncredited)
Seo Hyun-woo character SNC reporter (uncredited)
Lee Sang-hee character YTN reporter (uncredited)
Kang Shin-chul character Agent (uncredited)
Jin Sun-kyu character Equipment manager (uncredited)
Yeo Min-Gyu character Voice of 119 telephone operator, helicopter agent (uncredited)
Chang-jik Lee character veteran workman (uncredited)
Kim Sung-kyu character Civic group 3 (uncredited)
Park Jin-woo character Government aide (uncredited)
