Hwayi: A Monster Boy

김윤석

Seok-tae

여진구

Hwa-yi

Cho Jin-woong

Ki-tae

장현성

Jin-seong

김성균

Dong-beom

박해준

Beom-soo

임지은

Young-joo

박용우

Det. Chang-ho

Kim Young-min

Jung-min

서영화

Seon-ja

유연석

Park Ji-won

남지현

Yoo-kyung

이경영

Lim Hyeong-taek

문성근

CEO Jeon

Han Joo-wan

CEO Jeon's Attendant

이유미

Yoo-kyung's Friend 1

Park Gyu-ri

Yoo-kyung's Friend 2

박진우

Detective Jang