김윤진

Jeong-hye Hong

Jang Young Nam

Section Chief Bang

지성원

Hyeon-ju

정수영

Hwa-ja Ji

이다희

Na-yeong Gong

나문희

Kim Moon-ok

Kyeong-min Mun

Prison Warden

박준면

Yeon-sil Kang

Lee Tae-kyeong

Newborn Min-wu

강예원

Yu-mi Kang

Park Ji-yeon

Harmony Choir / Sil Soo-ro

Jin-hyeok Cha

Hyun-wook

김재화

Kwon Dal-nyeo

도용구

School Director

박혜진

Yu-mi's Mother

Kang Dae-gyu