Mourning Grave

Kim So-eun

Sae-hee

Jeong-tae Kim

Sun-il

Hye-Rin Han

Hyun-ji

Doo-Sik Park

Hae-chul

Min Ha Ju

Na-ra

Da-Yeong Ju

Sung-hee

Kwak Jung-Wook

Ki-tae

Ah-Hyeon Lee

Homeroom Teacher

Choong-seon Park

Sae-hee's Father

Yun-hong Oh

Ah-young's Mother

Kim Young-choon

Ho-sub

Bom Lee

Hye-jeong

Hy-Jeong

Seung-hyeon

Ro-sa Kim

Warehouse Ghost

Yeong-geol Yun

Detective Jeong

Jeong-cheol Lee

Dean of Students

Il-Beom Jeon

Ah-yeong's Father

Jae-woo Ahn

Yong-joon