The Beast [Spanish]

Lee Sung-min

Jeong Han-soo

Yoo Jae-myung

Han Min-tae

Kim Dae-Gon

Detective

Daniel Choi

Jong-chan

Kim Eun Hye

[Female witness]

Ho-jung Kim

Madam Oh

Jeon Hye-jin

Choon-bae

In-Kwon Baek

Jo Doo-sik

Ja-Yeon Ok

Jong-chan's wife

Kwi-seon Kim

Old man informant

Lee Seo-hwan

Forensics

Ahn Seong-bong

Backup detective

Shim Wan-Joon

Man in black hood 'Regional Investigation unit'

Kim Yeong-Seong

Detective 1 from team 1