I Have a Lover

I Have a Lover is a 2015-2016 South Korean television series starring Kim Hyun-joo, Ji Jin-hee, Park Han-byul and Lee Kyu-han. It aired on SBS's Saturdays and Sundays at 22:00 (KST) from August 22, 2015, to February 28, 2016, for 50 episodes. Kim Hyun-joo and Ji Jin-hee previously starred together in Miss Kim's Million Dollar Quest (2004).

Plot
The ambitious and successful lawyer Do Hae-gang (Kim Hyun-joo) and her husband, Choi Jin-eon (Ji Jin-hee) have a dysfunctional relationship. They lose their child and Jin-eon starts an affair with a much younger girl, Seol-ri (Park Han-byul). Dokgo Yong-gi is Do Hae-gang's unknown twin sister. After the couple divorce, Hae-gang gets into a mysterious car accident and loses her memory. Baek Seok (Lee Kyu-han), mistaking Hae-gang as Yong-gi, saves Hae-gang and makes her live as Yong-gi. Hae-gang becomes Baek-seok's fiancé and lives with his family. What will happen when Jin-eon and Hae-gang meet again? Will the couple be able to go back to how they used to be before?

Main characters

 * Kim Hyun-joo as Do Hae-gang (Birth Name: Dokgo On-gi) / Dokgo Yong-gi
 * Ji Jin-hee as Choi Jin-eon
 * Park Han-byul as Kang Seol-ri
 * Lee Kyu-han as Baek Seok

Supporting characters

 * Choi Jin-eon's family
 * Dokgo Young-jae as Choi man-ho, Jin-eon's father
 * Na Young-hee as Hong Se-hee, Jin-eon's mother
 * Baek Ji-won as Choi Jin-li, Jin-eon's half-sister
 * Gong Hyung-jin as Min Tae-seok, Jin-li's husband


 * Dokgo Yong-gi / Do Hae-gang sisters' family
 * Kim Chung as Kim Kyu-nam, the sisters' mother
 * Kang Boo-ja as Nam Cho-rok, Yong-gi's grandmother
 * Kim Ha-yoo as Dokgo Woo-joo, Yong-gi's daughter, alias Zhang Ling


 * Baek Seok's family
 * Choi Jung-woo as Baek Jun-sang, Baek Seok's father
 * Seo Ji-hee as Baek Ji
 * Park Ha-young as young Baek Ji
 * Seo Dong-hyun as Baek Hyun
 * Shin Soo-yeon as Baek Jo
 * Lee Chae-mi as young Baek Jo
 * Kim Do-yeop as Baek Bum
 * Ahn Jung-woo as Baek Jun


 * Extended cast
 * Lee Jae-yoon as Min Kyu-suk, Tae-seok's brother
 * Seo Dong-won as Go Hyun-woo, Jin-eon's friend
 * Lee Seung-hyung as Kim Tae Ho, Tae-seok's right-hand man
 * Jang Won-young as Manager Byun Gang-seok, Yong-gi's direct supervisor
 * Kim Bo-jung as Song Mi-ae, Yong-gi's colleague/friend
 * Kang Seo-jun as Yong-gi's colleague
 * Lee Jae-woo as Kim Sun-yong, Yong-gi's fiancée
 * Lee Sang-hoon as guy ordered by Tae-seok to follow Yong-gi
 * Lee Si-won as Lee Hae Joo, Teracop case plaintiff
 * Hwang Min-ho as Lee Hae Joo's husband
 * Han Dong-hwan as Lee Hae Joo's attorney
 * Kim Ho-chang
 * Lee Ji-yeon
 * Seo Bo-ik
 * Ahn Sung-gun
 * Kang Jun-seok
 * Kim Yong-wan
 * Jo Ha-lin
 * Park Jung-min
 * Lee Won-jang
 * Han Yeol