Ha-neul Kang

In-su

김소은

Ghost Girl

김정태

Seon-il

Han Hye-rin

Hyun-ji

Park Doo-sik

Hae-chul

주민하

Na-ra

주아름

Sung-hee

곽정욱

Ki-tae

Park Choong-seon

Se-he's father

이아현

Teacher

오윤홍

Ah-young's mother

이봄

Hye-jung

Yoon Chan-young

Young In-soo

Yoon Yeong-geol

Detective Jung

Park Geun-cheol

Student

이정철

Teacher

김재화

Ghost

경수진

Reversal

정가은

Teacher

Ahn Sang-tae

Ahn Sang-soon