Lee Yeon-hee as Choi Eun-hwan

Hyun Bin as Kang Jae-kyung

Lim Ju-hwan as Seung-Joon

Jeong Wook as Principal

Lee Han-sol as Myung-sik

Lee Young-hoo as Chairman Kang

Lee Kan-hee as Eun-hwan's Mother

Do Yong-gu as Myung-sik's Father

Park Yoo-Sun as Child in Public Performance

Kim Byeong-se as Lawyer

Lo Yong-Joon as Goo -Ho

Yang Geum-seok as Singing Class Member

Lee Jae-gu as Teacher

Lee Mi-do as Myung-suk's Younger Sister

Hong Dal-pyo as Jae-kyung's Father

Won Duk-hyun as Jae-kyung (Young)

Kim Jung-woon as Jae-soo's Friend #3

Park Jin-young as Butler

Kwon Oh-jin as Gas Station Boss

Kim Gyung-Ae as Soon-chul's Grandmother

Kim Kyeong-ran as Old Woman with Fur Socks

Kim Ki-doo as Pyung-chang's Classmate #3

Park Sang-hoon as Jae-soo

Kim Zio as Jae-soo's Friend #1

Jo Gyu-chul as