ปริศนาลับโรงเรียนมรณะ

이범수

Hwang Chang-wook

윤정희

Choi So-yeong

남규리

Kang Yi-na

김범

Kang Hyeon

손여은

Yoon Myung-hyo

이얼

Security guard

Kim So-hee

Ji-won's mother

공정환

Lee Chi-yeong

함은정

Kim Ji-won

Yang Ji-won

Min Hye-yeong

이채원

Yeom Ji-hyang

권현상

Cha Jae-wook