Ahn Ji-ho
Hoon
Ahn Nae-sang
Mu-jin
Yun Yoo-sun
So-yeon
Uhm Ji-sung
Byeong-tae
No Tae-yeob
Gi-cheol
Shin Se-hwi
Yeon-hee
Kim Joong-ki
Teacher
Gu Bon-jin
Math
Park Eun-young
Byeong-tae's mother
