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