사랑니

Kim Jung-eun

In-young

Lee Tae-sung

Lee Suk / Lee Soo

김영재

Jung-woo

Jung Yu-mi

Young In-young

Lee Joo-sil

In-young's Mother

김꽃비

Cram School Student

Jang So-yeon

ER Nurse

최반야

English Teacher

Brian Kim

Adult Lee Suk

Lee Seok

Young Jung-woo

곽민석

Driver