Générique complet
안녕, 내일 또 만나
Sim Hee-seop
Dong-jun
홍사빈
Young Dong-jun
Shin Joo-hyup
Young Kang-hyeon
김소희
Young Dong-hee
Kang Chae-yun
Yeong-ji 1
Ju-Ryoung Kim
Dong-jun's Mother
Kim Hak-sun
Dong-jun's Father
권지우
Ju-ho
옥지영
Yun-ju
권동호
Seong-il
송창의
Kang-hyeon
우미화
Academy director
곽
곽정길
Elderly Man in Room 502
안민영
Dong-jun's Stepmother
손지나
Kang-hyeon's Mother
Son Seong-chan
Kang-hyeon's Father
