Woo-jin and her own unrequited love for Lee Woo-jin. A life-threatening heart condition makes her ask Lee Woo-jin to choose priesthood over her. Although the surgery on her heart was a success she slips into a coma. She awakens from a coma at the end of the series ready to spend the rest of her life with Lee Woo-jin. Ji Jin-hee as Jung Woo-jin Although initially friendly to Lee Woo-jin, his jealously of the relationship of Eun-ha and Lee Woo-jin as well as the discovery that his stepmother is Woo-jin's biological mother causes him to act out of character and sabotage Lee Woo-jin's attempt at happiness. Like Lee Woo-jin he is also a qualified surgeon. He has unresolved issues with his father for leaving his biological mother and although he rebels against him, he finds himself turning out to be exactly like him. Supporting characters Son Hyun-joo as Father Peter Father Peter is Lee Woo-jin's maternal uncle who raised him in the church after rescuing him from a cruel paternal aunt. Kim Young-ae as Dr. Im Kyung-eun Im Kyung-eun is Lee Woo-jin's biological mother who abandoned him at birth. Kim Yoon-kyung as Seo-young Eun-ha's friend. Kwon Min-joong as Sister Esther Yoon Yoo-sun as Sister Gemma Yang Hee-kyung as Maria Father Peter's cook/housekeeper. Joo Hyun as Dr. Jung Myung-woo Im Kyung-eun's husband and Jung Woo-jin's father. Choi Jae-hyung Seo Hyun-ki Son Young-joon Jung Woo-jin's friend Jung Mi-ae as Andrew's high school classmate Yoo Seung-ho as young Lee Woo-jin/Andrew Han Ye-rin as Hee-jin Lee Woo-jin's cousin. International broadcast It also aired on KBFD-TV in Hawaii in March 2003. GMA 7, a leading Philippine TV network aired Love Letter in March 2004. References External links Love Letter official MBC website Love Letter review at SPCNET MBC TV television dramas 2003 South Korean television series debuts 2003 South Korean television series endings Korean-language television shows South Korean romance television series South Korean melodrama television series