Head chef of a Michelin 3-star restaurant in Paris. The only daughter of renowned historian Yeon Seung-woo. While carrying the ancient book Mangunrok at her father's request, she time-slips to Joseon during a flight to Korea. She is fundamentally bright and cheerful, but a fierce professional when cooking. After falling into Joseon, her skills are recognized by Prince Yeonhui, and she rises to the position of Royal Chef in the palace kitchen.

The King of Joseon. The son of the deposed Queen Yeon, he transformed into a tyrant after his mother was deposed and killed during his childhood. Though called a tyrant, he is a gourmet with a 'divine palate.' He suffers from insomnia and migraines, and trusts no one due to constant threats of poisoning. He feels stability and emotion for the first time through Yeon Jiyoung's cooking, showing both obsession and affection for her. He has a straightforward personality, expressing his emotions without filter.

Suk-won. Lee Heon's concubine. A beauty of unparalleled grace who monopolizes Lee Heon's favor. She acts as a loyal spy for Grand Prince Jesan, leaking palace information. Having survived a rough and difficult past, she moves coldly to protect her status and attempts to eliminate Yeon Jiyoung. She is a tragic villainess who chases power only to meet a miserable end.

Lee Heon's uncle and the head of Saongwon. He pretends to be a fool on the outside, but in reality, he dreams of rebellion and is allied with the power players of the Hanyang court. Despite facing crises, such as being ordered to leave Jahongwon by the Grand Queen Dowager Inju, he eventually moves to stage a coup. He is the hidden mastermind aiming for the throne, obsessed with wealth and power.

A girl who came to the capital to find her father, a military officer of the Jeolla Left Naval Station. Possessing an absolute sense of smell, she is a reliable ally who is the only one to believe Yeon Jiyoung's claim of coming from the future. She grows under Jiyoung's guidance. She is characterized by her shrill voice and thick Jeolla Province dialect.

Commander of the Urimwi. Taciturn and loyal. As Lee Heon's bodyguard, he possesses absolute loyalty. He exudes a strong presence even without dialogue.

Lee Heon's clown. The leader of a troupe of performers, he is skilled in the Cheoyongmu dance. A mysterious figure with many secrets, he knows the truth behind Yeon Jiyoung's time-slip.

Chief Royal Secretary. The husband of Princess Hwisuk, Lee Heon's sister. A strategist skilled in political maneuvering. Though called a sycophant, he stands firmly by Lee Heon's side. He has ambitions to reorganize the power structure through Yeon Jiyoung.

Eom Bong-sik (Chef Eom)

Maeng Man-su (Chef Maeng)

Shim Mak-jin

Min Gae-deok

Wu Kun

Abisu

Tang Bailong

Kong Mun-rye