Park Myung-shinYeo Sa-jang Mun Ka-youngYoung Kim So-yeon Lee Mu-saengJeong Myeong-bo Jeon Kuk-hwanPrincipal of the Middle School Kim Young-sunSupermarket Owner's Wife Choi Jung-wooDetective Gu Kim Min-kyoDetective Park Jang Nam-yeolKyung-ju's Father Tak Woo-sukYoung Kyung-ju Jung Yoon-seoHyo-yi's Mother Yeom Hye-ranRice Cake Vendor (uncredited) Ha-ram KimBully Kid (uncredited) Jeon Soo-hwan(uncredited) Shin Hwa-chulConscripted Policeman Mo Hong-jinSchrijver / Producer Park Eui-dongVfx Supervisor 
