Park Se-wan

as Ghost with glasses

as Pi

as Jung Su-a

as Choi I-ra

as Eun-hye

as Se-wan

as Geum Bak-Ha

as Oh Sa-rang

as Lee Yeon-hee

as Hye-ri

as Seo Min-seo

as Young Oh Se-yeon

as Han Gyeo-ul

as Mi-na

as Lee Kkot-Bi

as Park Ha-kyung (young)

as Kim Shi-eun

as Yeon Da-Yeon

as Kim Yang-Hee (young)

as Han Seul-Ki

as Sook Hee

as Lee Ba-dook

as Moon Da-bin

as Young Kim Yang-Hee

as Yisoo

as 이바둑