Elenco - The Whistleblower
박해일
Yoon Min-cheol
이경영
Lee Jang-hwan
유연석
Shim Min-ho
박원상
Lee Sung-ho
류현경
Kim Mi-hyeon
송하윤
Kim Yi-seul
김수안
Shim Soo-bin
김강현
Lee Do-hyeong
남명렬
Professor Yoo Jong-jin
Hwang Jae-won
Park Soo-hyun
김중기
Pastor Park
김지훈
Mr. Kim
Lee Bong-gyu
Monk
박성근
PD
이승준
PD
Lee Hwa-ryong
Min-cheol’s Friend
전수지
Researcher 1
박용수
Broadcast Station Executive 1
박진영
Broadcast Station Executive 2
권해효
Broadcast Station Director
최희진
Reporter 2
김경란
Old Mother
장광
Broadcast Station President (cameo)
최용민
Minister of Science and Technology (cameo)
Han Gi-joong
Director of National Intelligence Service (cameo)
김원해
Taxi Driver (cameo)
이미도
Min-Cheol's Wife (cameo)
김영재
Press Conference MC (cameo)
황정민
Woman at Old House (cameo)Kim Dae-heung
Icebox Man
오창경
Taxi driver