Kim Jae-won
Han Seo-yoon
Choi Ji-min
Jeong Tae-hoon
Kim Seong-hyeon
Doctor
Korean Teacher
Math Teacher
Jae-won's Mother
Seo-yoon's Mother
Seo-yoon's father
Koo Dong-sik
Troubled Student 1
Troubled Student 2
Troubled Student 3
Troubled Student 4
