박해일

Lee Yoo-rim

강혜정

Choi Hong

Grina Park

Hee-Jung

서영화

Language teacher

박진우

Yeon-Ho's friend (uncredited)

Woo Ki-hong

Yeon-Ho's friend 2 (uncredited)

Jung Young-ki

Student teacher (uncredited)

Lee Hyun-Jung

Choi Hong's mother

김세동

chief police at police station (uncredited)

Choi Jae-hwan

Gu Suk-Ji (student) (uncredited)

김자영

Teacher (uncredited)

김신록

Student teacher

최선중

Teacher