Park Hae-il as Yoon Min-cheol

Lee Kyung-young as Lee Jang-hwan

Yoo Yeon-seok as Shim Min-ho

Park Won-sang as Lee Sung-ho

Ryu Hyun-kyung as Kim Mi-hyeon

Song Ha-yoon as Kim Yi-seul

Kim Su-an as Shim Soo-bin

Kim Kang-hyun as Lee Do-hyeong

Nam Myung-ryeol as Professor Yoo Jong-jin

Hwang Jae-won as Park Soo-hyun

Kim Joong-ki as Pastor Park

Kim Ji-hoon as Mr. Kim

Lee Bong-gyu as Monk

Park Seong-geun as PD

Lee Seung-joon as PD

Lee Hwa-ryong as Min-cheol’s Friend

Jeon Su-ji as Researcher 1

Park Yong-su as Broadcast Station Executive 1

Park Jin-young as Broadcast Station Executive 2

Kwon Hae-hyo as Broadcast Station Director

Choi Hee-jin as Reporter 2

Kim Kyeong-ran as Old Mother

Jang Gwang as Broadcast Station President (cameo)

Choi Yong-min as Minister of Science and Technology (cameo)

Han Gi-joong as Director of National Intelligence Service (cameo)

Kim Won-hae as Taxi Driver (cameo)

Lee Mi-do as Min-Cheol's Wife (cameo)

Kim Young-jae as Press Conference MC (cameo)

Hwang Jeong-min as Woman at Old House (cameo)

Kim Dae-heung as Icebox Man

Oh Chang-kyung as Taxi driver