Son Woo-hyeon commonly known as Son Woo-hyun (born Son Hyeon-seok on 30 November 1989) is a South Korean actor, singer and songwriter. First appear on television in 2011, as the leader of X-5 (a K-pop idol group) with the stage name "Ghun", Son quickly gathers public attention and gain popularity through his eye-catching performances along with the rise of Hallyu-wave. Some of his most notable works include Spy Myung-wol (2011), Live (2018), The Nokdu Flower (2019), Touch (2020), Mouse (2021) and Golden Spoon (2022).