안소희
— Yun-im
박상남
— Ki-haeng
Lee Hyun So
— Jong-won
Takuya Terada
— Michio
조은유
— Na-eun
오태경
— Manager
배유람
— Dong-hwa
신소율
— Yu-jeong
고서희
— Hye-rin's mother
윤준원
— Detective Joo
Kim Tae-jun
— Detective Park
정인기
— Vice manager
장준휘
— Vice head teacher
이재인
— Head teacher
Yang Ji-il
— Instructor
강혁일
— Jin-do
Hong Ji-young
— Yeon-woo's mother