Krystal Jung

as To-il

Jang Hye-jin

as Seon-myeong

Choi Deok-moon

as Tae-hyo

Shin Jae-whi

as Ho-hoon

Lee Hae-yeong

as Hwan-gyu

Kang Mal-geum

as Ho-hoon's Mother

Nam Moon-chul

as Ho-hoon's Father

Jang Hat-sal

as Bok-nam

Kim Joon-bum

as Teacher Choi

Kim Mi-hyang

as Material Grandmother

Lee Ju-won

as Teacher Choi

Shin Mi-yeong

as Fried Food Customer

Lee Seung-chul

as Badminton Club Member

Ahn Jae-Min

as Ho-hoon's Friend

Park So-eun

as Wedding Guest

Kim Neul-me

as Badminton Club Member