The World of Us

Choi Soo-in

as

Seon

Seol Hye-in

as

Ji-ah

Lee Seo-yeon

as

Bora

Kang Min-joon

as

Yoon

Kim Hee-joon

as

Eun-joo

Kim Chae-yeon

as

Tae-yeon

Jang Hye-jin

as

Seon's Mother

Son Seok-bae

as

Seon's Father

Ri Woo-jin

as

Stationary Sto...

Kim Young-mi

as

School Teacher

Choi Joon-woo

as

Min-cheol

Choi Chan-sook

as

Ji-ah's Grandm...