Ong Seong-wu

Choi Joon-Woo

김향기

Yoo Soo-Bin

신승호

Ma Whi-Young

강기영

Oh Han-Kyeol

심이영

Joon-Woo's mother

Kim Sun-young

Soo-Bin's mother

최재웅

Choi Myeong-jun

문빈

Jung Oh-je

정영주

Park Geum-ja

정현준

Choi Joon-Woo (young)

Yoo In-soo

Yoo Pil-Sang

Han Sung-min

Hwang Ro Mi [Soo Bin's classmate]

Kim Bo-yoon

Kwon Da-hwin

Moon Joo-yeon

Yoon So-ye

Baek Jae-woo

Go Dong