행복은 성적순이 아니잖아요

양택조 as Lee Jung-suk 이해룡 as Eun-joo's father 李德华 as Park Gil-ho 최주봉 as Homeroom Teacher Choi Soo-ji as Ms. Kang 李美妍 as Lee Eun-joo 전운 as Principal 郑惠先 as Eun-joo's mother 金一宇 as Mr. Jung 김보성 as Kim Bong-koo 金民钟 as Son Chang-soo

정광석 Director of Photography 康佑硕 Director 金昌完 Music 김현 Editor