The strange but beautiful love story of a genius doctor who suffers from "Cinderella Memory Disorder", in which the memories of the previous day disappear at twelve o'clock, and a washed-up actress.[7]
Choi Jin-hyuk as Gong Ma-seong (34 years old), the successor of Sunwoo Group who is a doctor and chief of a cranial nerve center. After a car accident where he tries to help a woman he happens to meet, he suffers from short-term amnesia, and his memory does not last for more than a day.[8]
Song Ha-yoon as Ju Gi-ppeum (30 years old), a top actress who falls from grace due to a false charge.[7]
Lee Ho-won as Sung Ki-joon (31 years old), Ma-seong's younger cousin who is an entertainer, and whose dream is to become aHallyu star. He is the second-in-line-heir to Sunwoo Group, but is not interested in business.[9]
Seo Yoon-hyuk as young Sung Ki-joon
Lee Joo-yeon as Lee Ha-im (34 years old), an ambitious A-list actress who is the only child of a rich family.[10][11]
In October 2018, reports revealed the unpaid wages issue of actors and some staff members. The series' production company Golden Thumb Pictures commented on an official statement that all payments would be settled by the end of November.[20] However, in December, it was reported that not all of the cast members had been paid yet, including lead actressesSong Ha-yoon andLee Joo-yeon. Golden Thumb Pictures then promised to pay everyone by December 31.[21][22]
On January 2, 2019, actress Song Ha-yoon's agencyJYP Entertainment shared their plans on taking all possible legal action including civil and criminal lawsuits against the parties affiliated with the unpaid wages forDevilish Charm, as they had yet to receive their full payments. Broadcasting company iHQ remarked that the issue had to be settled by Golden Thumb Pictures as the wages were contracted between them and the actors.[23][24]
