Doona!

Suzy

Lee Doona

양세종

Lee Won-jun

Ahn Ha-young

Kim Jin-ju

박세완

Choi I-ra

김도완

Gu Jeong-hoon

김민호

Seo Yun-taek

Joo Yeon-woo

Guk Su-jin

백지혜

Lee Eun-ju

이찬형

Ji Se-hun

하선재

Cha Seong-kuk

Ko A-sung

Ha-yeon

이진욱

Park In-wook

리안

Bit-na

시미즈

Ye-ji

Janet Suhh

Ji-soo

김유미

President Ma

마정필

Cafe owner

Aancod Abe Zaccarelli

Dos Santos

Kim Yoon-seol

Bus stop student

Lee Jung-yeol

Security guard

진태연

Mother hiring tutor

Kim Hyeon-mok

Stalker

이소윤

Choe I-ra (child)

이우주

Lee Won-jun (teen)

정민준

Lee Won-jun (child)

이나라

Laboring woman

Go Ae-ri

Laboring woman

Do Ye-joon

Yun-taek's friend

Do Won

Nightclub man

안태린

Lee Doona (child)

강명주

Song Sun-ae

서은솔

Lee Won-young

손상규

Won-jun's senior

김선영

Doona's mom

임승수

Jiu-jitsu boy