as Park Cheol-woong

as Mr. Chang

as Shin Duk-cheon

as Myeong-goo

as Chief Detective Ma

as 신씨

as Yeong-doo

as Jung-in

as Mr. Park

as Self

as Han Seo-pil

as Police Station Chief (seg. 6)

as Dal-su

as Choi Sang-cheol

as Jung-ju's Father

as Father (voice)

as Park Dong-ho

as Na Sang-Choon

as Gang-mok

as So Yang-ho

as Andrew

as Na Bok-cheon

as Oh Jae-pyeong

as Gak-su

as Oh Ge-un

as Hyun-soo

as Oh Yeong-dal

as Professor Kim Sang-chul / Professor Oh Byung-seok

as Old Man Ma

as Han Sang-jil

as Byeong-soo

as Dal-goo

as Han Seo-pil

as Nam Gyun-soo

as Pomade

as Principle Deok-saeng

as In-sool

as Oh Jae-pyeong

as Director Ko

as Jang Seong-pil

as Dae-kyung

as Master Sergeant Min Dong-phil

as Kang Dae-woong

as Hwang Myung-joon

as Factory President

as Glutinous Rice Cake Seller

as Byung-man

as Prosecutor

as Mr. Ahn

as Nak-man's Father

as The Monster (voice)

as Journalist (cameo) (uncredited)

as Han Seo-pil

as Gwang-rok

as Hwang

as Hak-Yi

as Do Ji-yeol

as Eui-sik

as Police Box (Chief)

as Yong-dae

as Taxi Driver