행복은 성적순이 아니잖아요

김보성 as Kim Bong-koo Choi Soo-ji as Ms. Kang 전운 as Principal Jeong Hye-seon as Eun-joo's mother 이덕화 as Park Gil-ho 최주봉 as Homeroom Teacher 양택조 as Lee Jung-suk 이해룡 as Eun-joo's father 김민종 as Son Chang-soo 이미연 as Lee Eun-joo 김일우 as Mr. Jung

강우석 Director 김창완 Music 김현 Editor 정광석 Director of Photography