행복은 성적순이 아니잖아요

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

김창완 Music 김현 Editor 강우석 Director 정광석 Director of Photography