Maggie

Lee Joo-young

Yoon-young

Koo Kyo-hwan

Sung-won

Moon So-ri

Lee Kyung-jin

Chun Woo-hee

Maggie (voice)

Park Kyung-hye

Radiologist

Park Jong-hwan

Gak Granger

Kwon Hae-hyo

Maggie's Father

Kim Kkob-bi

Bookworm

Oh Hee-jun

Hospital Patient

Dong Bang-woo

Hospital Patient

Park Kang-seop

Kang-sup

Don Mills

Dong-hyun