Lee Jae-kyoon
Sungchul
Jang Yoo-sang
Kijoon
박현숙
Sungchul's mom
Go Min-si
Yoosun
Kim Jun-ku
Sunghyun
김채원
Girl at PC cafe
박재현
Kijoon's friend
Kim Jung-pal
[Seong Cheol's father]
