A business mogul's grandson, who has 7 personalities, and a female physician who becomes his secret doctor.
as Cha Do-hyun / Shin Se-gi
as Oh Ri-jin
as Oh Ri-on
as Cha Ki-joon
as Han Chae-yeon
as Seo Tae-im
as Shin Hwa-ran
as Cha Geon-ho
as Cha Joon-pyo
as Min Seo-yeon
as Dr. Seok Ho-pil
as Chief Ahn Gook
as Ji Soon-young
as Oh Dae-o
as Yoon Ja-kyung
as Cha Young-pyo
as Baek Jin-sook
as Alex Kang
as Chief Choi
as Kang In-kyu
as Shin Seon-jo
as Joo Mi-ra
as Lee Young-seon
as Hong Ji-sun
