Ryeoun
Ha Eun-gyeol

Choi Hyun-wook
Ha Yi-chan

Seol In-a
Choi Se-gyeong / On Eun-yu

Shin Eun-soo
Yoon Chung-ah

Choi Won-young
Eun-gyeol's Father

Seo Young-hee
Eun-gyeol's Mother

Jung Sang-hoon
Master

Cheon Ho-jin
Grandpa Viva

Goh Doo-shim
Go Yang-hee

Kim Joo-ryoung
Im Ji-mi

Bong Jae-hyun
Ha Eun-ho

Koo Jun-hoe
Koo Jun-hyeong

Ahn Do-gyu
Oh Ma-joo

Yoon Jae-chan
Kang Hyun-yul

Lee Ha-min
Lee Si-guk

Lee Su-chan
No Se-bum

Kim Tae-woo
Yoon Gun-hyung

Kwon Do-hyung
Yoon Ju-yeop

Lee Soo-min
Yoon Sang-a

Lee Suk-hyeong
Jung Bal-san

Lee So-yeon
Adult Choi Se-gyeong

Park Ho-san
Choi Hyun

Yeon Oh
Jung Ji-oh

Oh Hee-jun
On Ji-hwan

Han Min
Bae Soo-tak

Kim Jun-hyung
Yoon Dong-jin