반짝이는 워터멜론

려운

as Ha Eun-gyeol

최현욱

as Ha Yi-chan

설인아

as Choi Se-gyeong / On Eun-yu

신은수

as Yoon Chung-ah

최원영

as Eun-gyeol's Father

서영희

as Eun-gyeol's Mother

정상훈

as Master

천호진

as Grandpa Viva

고두심

as Go Yang-hee

김주령

as Im Ji-mi

봉재현

as Ha Eun-ho

Ju-ne

as Koo Jun-hyeong

안도규

as Oh Ma-joo

Yoon Jae-chan

as Kang Hyun-yul

Lee Ha-min

as Lee Si-guk

이수찬

as No Se-bum

김태우

as Yoon Gun-hyung

Kwon Do-hyung

as Yoon Ju-yeop

이수민

as Yoon Sang-a

이석형

as Jung Bal-san

이소연

as Adult Choi Se-gyeong

박호산

as Choi Hyun

Yeon Oh

as Jung Ji-oh

Oh Hee-jun

as On Ji-hwan

Han Min

as Bae Soo-tak

Kim Jun-hyung

as Yoon Dong-jin