Maggie

Lee Joo-young

as

Yoon-young

Koo Kyo-hwan

as

Sung-won

Moon So-ri

as

Lee Kyung-jin

Chun Woo-hee

as

Maggie (voice)

Park Kyung-hye

as

Radiologist

Park Jong-hwan

as

Gak Granger

Kwon Hae-hyo

as

Maggie's Father

Kim Kkob-bi

as

Bookworm

Oh Hee-jun

as

Hospital Patie...

Dong Bang-woo

as

Hospital Patie...

Park Kang-seop

as

Kang-sup

Don Mills

as

Dong-hyun

Lee Zoo-young

as

Ji-yeon

Shim Dal-gi

as

Hospital Patie...

Yi Ok-seop

as

Callcenter (vo...

Kim Min-seo

as

Young Lee Kyun...

Lee Ha-eun

as

High School St...

Im Su-hyung

as

Caregiver

Park Gil-su

as

Laundrette Own...

Han Tae-ee

as

Hospital Patie...