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Seon

Seol Hye-in

Ji-ah

이서연

Bora

Kang Min-joon

Yoon

Kim Hee-joon

Eun-joo

Kim Chae-yeon

Tae-yeon

장혜진

Seon's Mother

Son Seok-bae

Seon's Father

Ri Woo-jin

Stationary Store Man

Kim Young-mi

School Teacher

Choi Joon-woo

Min-cheol

Choi Chan-sook

Ji-ah's Grandmother

윤가은