Park Hae-il

Lee Yoo-rim

Kang Hye-jung

Choi Hong

Grina Park

Hee-Jung

Seo Young-hwa

Language teacher

Park Jin-woo

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

Kim Se-dong

chief police at police station (uncredited)

Choi Jae-hwan

Gu Suk-Ji (student) (uncredited)

Kim Ja-young

Teacher (uncredited)

Kim Shin-rock

Student teacher