넘버원

Cshö Usik

Ha-min

Csang Hjedzsin

Eun-sil

공승연

Ryeo-eun

권다함

Min-hyeong

Ahn Dong-gu

Seok-jong

양경원

Chang-seok

유재명

Ha-min's Father

장연우

Ha-min's Brother

Kim Young-min

Doctor

송건희

Gi-hun