Moon Chae Won (Main Role)
Yeo Eui JooYoon Sang Hyun (Main Role)
Seo Dong ChanYoon Eun Hye (Main Role)
Kang Hye NaKwon Ki Sun (Support Role)
Kim Seung Ja (Eui Joo's mother) Lee Hee Won (Support Role)
Kang Soon AhPark Hyun Sook (Support Role)
Maid Jang / Jang Min HwaJung Il Woo (Main Role)
Lee Tae YoonYoon Ye Hee (Support Role)
Jo Mi OkHeo Tae Hee (Support Role)
Kim Myung Kook (Support Role)
Kang Chul GooKim Ik (Support Role)
Park Soo HoKwon Yool (Support Role)
Jeong ShikKim Seung Wook (Support Role)
Butler JangKim Young Kwang (Support Role)
Jung Woo SungLee Jung Gil (Support Role)
President Kang / Kang Man Ho (Hye Na's grandfather)Jang Yoon Seo (Support Role)
Han Tae Yun (Support Role)
Lee Sun-JooLee Jin Saem (Support Role)
(Kang Hye Na's friend)Wang Seok Hyun (Support Role)
Kang Soo-MinLee Jae Hee (Support Role)
Park Soo HoHan Ji Hoo (Guest Role)
(Son of rich family)Song Joong Ki (Guest Role)
(Handsome butler) (Ep. 1)Yeo Hee Goo (Guest Role)
Kang Hye Na (Child)