이연희
Choi Eun-hwan
현빈
Kang Jae-kyung
임주환
Seung-Joon
정욱
Principal
이한솔
Myung-sik
이영후
Chairman Kang
이칸희
Eun-hwan's Mother
도용구
Myung-sik's Father
Park Yoo-Sun
Child in Public Performance
Kim Byeong-se
Lawyer
Lo Yong-Joon
Goo -Ho
양금석
Singing Class Member
이재구
Teacher
이미도
Myung-suk's Younger Sister
