Cast from Atonement

So Joo-yeon

Kim Jong-hee

Jung Yi-seo

Woo Hyung-joo

Joe In

Kang Bo-ri

Lee Ga-yeon

Kim Jong-hee (Young)

Park Yoon-young

Woo Hyung-joo (Young)

So A-rin

Kang Bo-ri (Young)

Kim Jong-tae

Hyung-joo's stepfather

Jung You-me

Hyung-joo's mother

Choi Sol-hee

Teacher