Ju Sang-uk

Jin Hyeong-woo

Nam Joo-hyuk

Jin Hyeong-woo (teen)

Choi Kang-hee

Shin Eun-soo

Kim Sae-ron

Shin Eun-soo (teen)

Cha Ye-ryun

Kang Il-joo

Kim Bo-ra

Kang Il-joo (teen)

Jung Jin-young

Kang Seok-hyun

Dong Ha

Shin Bum-Soo

Na Young-hee

Hyeong-woo's mother

Jung In-gi

Eun-soo's father

Park Jung-ah

Lee See-young

Kal So-won

Hong Mirae