Park Jeong-min (Korean: 박정민; born March 24, 1987) is a South Korean actor, writer, and book publisher. Known as a prolific Chungmu-ro actor, he has starred in films such as Bleak Night (2011), Dongju: The Portrait of a Poet (2016), Keys to the Heart (2018), Deliver Us from Evil (2020), Smugglers (2023), Uprising (2024), Harbin (2024) and The Ugly (2025). He is also the author of the best-selling book A Useful Person. (Via Wikipedia)