A business mogul's grandson, who has 7 personalities, and a female physician who becomes his secret doctor.
지성
Cha Do-hyun / Shin Se-gi
황정음
Oh Ri-jin
박서준
Oh Ri-on
오민석
Cha Ki-joon
김유리
Han Chae-yeon
김영애
Seo Tae-im
심혜진
Shin Hwa-ran
김용건
Cha Geon-ho
안내상
Cha Joon-pyo
명세빈
Min Seo-yeon
고창석
Dr. Seok Ho-pil
최원영
Chief Ahn Gook
김희정
Ji Soon-young
박준규
Oh Dae-o
