Hwayi: A Monster Boy

Kim Yun-seok

as

Seok-tae

Yeo Jin-goo

as

Hwa-yi

Cho Jin-woong

as

Ki-tae

Jang Hyun-sung

as

Jin-seong

Kim Sung-kyun

as

Dong-beom

Park Hae-joon

as

Beom-soo

Im Ji-eun

as

Young-joo

Park Yong-woo

as

Det. Chang-ho

Kim Young-min

as

Jung-min

Seo Young-hwa

as

Seon-ja

Yoo Yeon-seok

as

Park Ji-won

Nam Ji-hyun

as

Yoo-kyung

Lee Kyung-young

as

Lim Hyeong-taek

Moon Sung-keun

as

CEO Jeon

Han Joo-wan

as

CEO Jeon's Att...

Lee You-mi

as

Yoo-kyung's Fr...

Park Gyu-ri

as

Yoo-kyung's Fr...

Park Jin-woo

as

Detective Jang

Park Myung-shin

as

Assemblywoman ...

Han Chul-woo

as

Detective Kim

Min Young

as

Paju Hospital ...

Min Bok-gi

as

Ex-prosecutor

Kim Lok-kyoung

as

Security Guard

Park Kyung-hye

as

Union Staff

Son Jong-hak

as

Police Chief

Park Sung-jun

as

Student

Woo Jung-kook

as

Blind Masseur

Son Kang-gook

as

Police Officer

Im So-mi

as

Cherry Tavern ...

Lee Jun-hyeok

as

Police Officer

Yu Hyun-zun

as

Detective

Im Hyeong-taek

as

Detective

Jang Seong-beom

as

Young Seok-tae