The King of Joseon. Though he possesses a cruel nature, he maintains a peaceful and prosperous reign. He hates being bound by protocol and acts as if he dislikes the Queen, though the truth may be otherwise. He keeps several concubines and favored court ladies.

The daughter of the Right State Councilor's family, she is highly ambitious about becoming Queen and winning Yi Hyeon's favor. She is intelligent and strategic in her jealousy and schemes. She currently has no children.

The daughter of a humble provincial family. She caught Yi Hyeon's eye during the concubine selection and joined the palace. While she desires the King's favor, she occupies an ambiguous position, overshadowed by the Queen, Consort Bin Choi, and other favored court ladies. She has a daughter, Princess Hyeryeong (5 years old).

Originally a court lady, she became a favored court lady and was recently appointed to the rank of Sug-won after becoming pregnant. She is very flirtatious, overtly jealous, and often fails to know her place. She currently enjoys much of Yi Hyeon's favor.