Jin Tae-hyun as Nam Joo-seung - Joo Ah-ran's lover. He is a person who has secrets of his own. Joo-seung works as a doctor during the day and works as a lounge singer at a jazz café at night. His father was the secretary of Mr. Shin, who the younger Nam now works for as the family doctor. He has no physical prowess, but has a strong eyesight, in addition to having a very strong charisma. Hong Soo-hyun as Yoon Jae-hee/Joo Kyeong-ran Park Ha-young as young Jae-hee She grew up not knowing who her parents are. She has a bright and optimistic viewpoint on the world. As a child, she dreamed of becoming a nurse who takes care of the poor. Even when she was growing up in the orphanage, she took care of younger children like a big sister. Rather than thinking she was abandoned by her real parents, she believed that it was enough that she was given the love and care from the people of the orphanage. Little did she know that her real parents have died and her sister is still alive, which turns out to be Joo Ah-ran . Jung Gyu-su as Joo Ah-ran's father Kang Yu-mi as Kim Yeon-jae Han Jin-hee as Shin Woo-sub Cha Hwa-yeon as Jo Kyung-hee Kim Dong-keon as Shin Hyun-min Jin Ye-sol as Shin Hyun-ji Sung Chang-hoon as Secretary Kang Choi Ji-na as Jung Sang-ah / Julie Jung Lee Jong-hyuk as Jung Sang-mo Lee Mi-young as Jae-hee's aunt Jung Gyu-soo as Jae-hee's uncle Ahn Nae-sang as detective (eps. 15-16) Oh Dae-gyu as fake Hyun-woo (ep. 15) Lee Jae-hwang as An Jae-sung (cameo) Kim Ho-chang as the journalist Lee Sol-gu as the money lender Son Hyun-joo Kim Sung-oh Ratings Awards 2009 SBS Drama Awards Best Supporting Actress in a Special Planning Drama: Cha Hwa-yeon New Star Award: Lee So-yeon Notes This was considered by many as a "male version" of SBS' top-rating primetime daily drama, Temptation of Wife. References External links Official SBS Website Seoul Broadcasting System television dramas 2009 South Korean television series debuts 2009 South Korean television series endings Korean-language television shows South Korean melodrama television series South Korean suspense television series Television series by Samhwa Networks Television shows written by Kim Soon-ok