Lee Sang-yi is a South Korean actor who has steadily built a reputation for his versatile performances across both television and film. Born in 1991, he made his acting debut in the early 2010s and initially gained attention for his supporting roles in popular dramas. He first came to widespread notice with his portrayal of a charismatic yet troubled character in the television series The King's Avatar, though it was his role in the hit drama Once Again that truly showcased his comedic timing and emotional range. His performance in Once Again earned him critical acclaim and a Rising Star Award at the 2020 APAN Star Awards, solidifying his place as a promising talent in the Korean entertainment industry. Lee Sang-yi further demonstrated his dramatic abilities in the series Hometown Cha-Cha-Cha, where he played a kind-hearted and slightly awkward dentist, a role that endeared him to a global audience and highlighted his ability to bring warmth and nuance to everyday characters. He also took on a more intense role in the crime thriller The Devil Judge, sharing the screen with established actors like Ji Sung and Park Jin-young. In addition to his television work, Lee Sang-yi has appeared in films such as The Battle of Jangsari, a war epic that allowed him to explore historical drama. Beyond acting, he is also known for his musical talents, having participated in the soundtrack for several of his dramas. As of the mid-2020s, Lee Sang-yi continues to take on diverse projects, balancing lead and supporting roles that challenge his range, and remains a respected figure in Korean drama known for his dedication to his craft and his ability to connect with audiences through both humor and sincerity.