The Classified File Cast and Crew

Main Cast: Hae-jin Yoo
Main Cast: Yoon-seok Kim
Supporting Cast: Jang Young-nam
Supporting Cast: Lee Jun-hyeok
Supporting Cast: Lee Jae-yong
Supporting Cast: Park Hyo-joo
Director: Kwak Kyung-taek
Writer: Kwak Kyung-taek
Writer: Han Dae-deok