An So-hee
Yun-im
Park Sang-nam
Ki-haeng
Lee Hyun So
Jong-won
Takuya Terada
Michio
Jo Eun-yoo
Na-eun
Oh Tae-kyung
Manager
Bae Yu-ram
Dong-hwa
Shin So-yul
Yu-jeong
Go Seo-hee
Hye-rin's mother
Yoon Jun-won
Detective Joo
Kim Tae-jun
Detective Park
Jung In-gi
Vice manager
Jang Jun-whee
Vice head teacher
Lee Jae-in
Head teacher
