Pemeran Romance

Kim Jae Won

as Choi Kwan Woo

Pemeran Utama

Kim Ha Neul

as Kim Chae Won

Pemeran Utama

Kim Yoo Mi

as Choi Yun Hee

Pemeran Pembantu

Go Myung Hwan

as Kim Bong Gyun

Pemeran Pembantu

Lee Byung Joon

Pemeran Pembantu

Jung Sung Hwan

as Lee Eun Suk

Pemeran Pembantu

Kang Rae Yeon

Pemeran Pembantu

Cha Seo Rin

as So Young

Pemeran Pembantu

Eum Moon Suk

as Lee Gang Ju

Pemeran Pembantu

Han Hye Jin

as Yoon Ji Soo [Kwan Woo's classmate]

Pemeran Pembantu

Park Won Sook

as President Yoon Mi Hee [Chae Won's mother]

Pemeran Pembantu

Kim Hae Sook

as [Kwan Woo's mother]

Pemeran Pembantu

Moon Ji Yoon

as Choi Jang Bi [Kwan Woo's brother]

Pemeran Pembantu

Kim Yong Gun

as Chairman Lee Young Kyu [Eun Suk's father]

Pemeran Pembantu

Ahn Yun Hong

as Seo Min Ju [Chae Won's roommate]

Pemeran Pembantu

Jung Kyung Soon

as [Female teacher who smokes]

Bintang Tamu

Lee Min Ho (이민호)

as [Troubled student taught by Kim Chae Won]

Bintang Tamu

Lee Eung Kyung

Bintang Tamu

Lee Seung Ah

Bintang Tamu

Huang Sae Joon

Composer

Lee Dae Young

Sutradara

Bae Yoo Mi

Screenwriter

Seo Hyun Ki

as Lee Kang Joo

Bit part