심은경
— Man-bok
박주희
— Soo-ji
Heo Jung-do
— Athletic Club Coach
Kim Sae-byuk
— Homeroom Teacher
윤지원
— Ji-hyeon
Kim Kwang-kyu
— Father
김정영
— Mother
Ahn Seung-gyun
— Jeong-don
Lee Joo-young
— Athletic Club Member
Choi Myeong-bin
— Young Man-bok
함성민
— Student
주인철
— Seoul Team Coach 1
Lee Sae-ro-mi
— Doctor
Won Choi
— Math Teacher