백만장자의 첫사랑

이연희

Choi Eun-hwan

현빈

Kang Jae-kyung

임주환

Seung-Joon

정욱

Principal

이한솔

Myung-sik

Lee Young-hoo

Chairman Kang

이칸희

Eun-hwan's Mother

도용구

Myung-sik's Father

Park Yoo-Sun

Child in Public Performance

Kim Byeong-se

Lawyer

양금석

Singing Class Member

이재구

Teacher

이미도

Myung-suk's Younger Sister

홍달표

Jae-kyung's Father

Kim Jung-woon

Jae-soo's Friend #3

박진영

Butler

Kwon Oh-jin

Gas Station Boss

김경란

Old Woman with Fur Socks

김기두

Pyung-chang's Classmate #3

박상훈

Jae-soo

Ким Тхэ Хун

Jae-soo's Friend #1

조규철

Lo Yong-Joon

Goo -Ho

Won Duk-hyun

Jae-kyung (Young)