Dr. Romantic is a South Korean television series starring Han Suk-kyu in the title role, alongside Yoo Yeon-seok, Seo Hyun-jin in the first season, Ahn Hyo-seop, Lee Sung-kyung and Kim Joo-hun in the second and third season. The first season aired on SBS TV from November 7, 2016, to January 16, 2017, every Monday and Tuesday at 22:00 (KST) for 20 episodes. The second season aired on SBS TV from January 6 to February 25, 2020, every Monday and Tuesday at 21:40 (KST) time slot for 16 episodes. The third season aired on SBS TV from April 28 to June 17, 2023, every Friday and Saturday at 22:00 (KST) time slot for 16 episodes. It is also available for streaming on Viu for the first and second seasons and Disney+ for the third season in selected regions.

Lee Jeong-min, known professionally as Seo Eun-soo (Korean: 서은수), is a South Korean actress and model. Seo made her acting debut in the 2016 television drama Don't Dare to Dream (2016). Seo received her big break after portraying the role of Seo Ji-soo in the KBS2 family drama My Golden Life (2017–2018). She appeared in other popular dramas, such as Dr. Romantic (2016), Duel (2017), Top Management (2018), and Legal High (2019). Her other works include The Smile Has Left Your Eyes (2018), Unlock My Boss (2022), Missing: The Other Side (2020–2023), and The Witch: Part 2. The Other One (2022).