The Beast

Lee Sung-min

as

Jung Han-su

Yoo Jae-myung

as

Han Min-tae

Jeon Hye-jin

as

Jun-bae

Choi Daniel

as

Jong-chan

Kim Ho-jung

as

Madam Oh

Kim Hong-pa

as

Mr. Jang

Ahn Seong-bong

as

Backup Detecti...

Park Hye-sook

as

Nun

Kim Kyung-duk

as

Choi Chul-gi

Kim Young-sung

as

Detective

An Si-ha

as

Jeong-yeon

Kim Eun-hye

as

Witness

Park Ji-soo

as

Thai Gang

Jeon Gwon-ha

Han Kyu-won

as

Detective 2

Moon Soon-ju

as

Detective