KDrama : Kill Me Heal Me (2015)

Kill Me Heal Me

SYNOPSIS

A traumatic childhood experience causes third-generation chaebol Cha Do-hyun to have memory lapses, and his personality fractures into seven different identities. He tries to regain control over his life and is treated secretly by Oh Ri-jin, a first-year psychiatry resident, who eventually falls in love with him.

CAST

• Ji Sung as Cha Do-hyun 

A wealthy businessman with a warmhearted personality who loves to help others. Which who he is, the main personality of the body. However, 11 years ago, after he realized that he suffers from dissociative identity disorder (DID) and he has been desperately trying to hide it from his families and friends. He has six other identities:

• Shin Se-Gi: a vehement guy with a devil-may-care demeanor who appears when Do-hyun experiences violence. He may be violent, but he never hurts children and women. Se-Ki endures all of Do-hyun's pain as he is the only one who remember his memories. His first love is Oh Ri-jin. 
• Perry Park: a 40-year-old man with an affinity for fishing and building bombs. He speaks with Jeolla dialect. 
• Ahn Yo-seob ("Yo-seob" is the Korean version of "Joseph"): a suicidal, intelligent 17-year-old boy and artist. Yo-na's twin brother. 
• Ahn Yo-na ("Yo-na" is the Korean version of "Jonah"): an extrovert and mischievous 17-year-old girl who loves idols. She appears when Cha Do-Hyun undergoes a great deal of pain or mental stress, and needs to endure it clandestinely. She has a crush on Oh Ri-on. 
• Nana: a 7 year-old girl who has a teddy bear named Nana. She is the embodiment of Cha's childhood fears as well as Ri-jin's younger self. 
• Mr. X: a mysterious guy who is later revealed as the father of Nana. 
• Hwang Jung-eum as Oh Ri-jin
•  Kim Amy as child Oh Ri-jin 

Oh Ri-on's twin sister. A first-year psychiatry resident who tries hard to maintain her seemingly perfect image to cover for her real personality. At first glance she looks elegant and genteel, but she is actually messy and short-tempered. Ri-jin then becomes Do Hyun's secret psychiatrist, and slowly falls in love with him.

• Park Seo-joon as Oh Ri-on 
• Kim Ye-joon as child Oh Ri-on 

He is Oh Ri-Jin's twin older brother. Ri-on often gets mistaken for a goofy simpleton, but he is actually a famous mystery novelist under the pseudonym Omega who investigates about Seungjin Family. His other name is Oh Hwi which is used to flirt with girls.

• Oh Min-suk as Cha Ki-joon 

President of ID Entertainment, he is Do-hyun's confident and competent cousin. Ki-joon and Do-hyun are rivals, with both competing to inherit their family's company.

• Kim Yoo-ri as Han Chae-yeon 

She is Do-hyun's first love and Ki-joon's fiancé, a cold and prideful woman.