Song Young-chang

as Yu Ja-gwang

as Oh Myung-gyu

as Seung-dae

as Kim Chun-seong

as Jun-Il

as UN Ambassador

as New Director of the Headquarters

as New Director at Nuclear Power Plant

as Minister Song Pil-joon

as Kim Pan-joo

as Director Kang

as Kim Ryu

as Jung-dae / Player 100

as Im Jeong-dae / Player 100

as Oh Bong-chan

as Kang Yong-ho

as Cheon Seong-dae

as Moon Sang-guk

as Baek Kyu-min

as Ji Dong-man

as Bae Sang-Do

as Park Ji-Tae

as Han Gun-do

as CEO Oh