윤진서

Kim Ga-in

이기우

Hyung-joong

박기웅

Hong Seok-min

Kim Min-kyung

Ji Seon-mo

연제욱

Choi Sang-gyeong

정유미

Lee Myeong-hee

김소은

Kim Ga-yun

안내상

Ga-in's Teacher

정인기

Detective Jo

Ahn Shin-woo

Hong Jae-sun

Kim Jin-geun

Hwang Dae-yong

Kim Do-yeon

Kim Mi-joo

Jeong Wook

Hyung-joong's Father

김소은

Kim Ga-geon

오연서

Chung Eun-gyeong

전국환

Ji-sun's Father

조연희

Kim Ji-sun

백주희

Hyung-joong's Mother

이칸희

Ga-in's Mother

Seo Yu-jeong

Ga In's youngest aunt

Kim Soo-woong

Adult Relative

Park Seoung-tae

Dae-yong's Mother

Lee Sae-byeol

Visitor

Kang Lee-seok

Young Park Hyun-joong

Park Sin-woo

Ending Student