Ji Chang-wook is a South Korean actor and singer. He rose to fame for playing the lead role of Dong-hae in daily drama series Smile Again, and had notable lead roles in television series such as Warrior Baek Dong-soo, Empress Ki, Healer, The K2, Suspicious Partner, Melting Me Softly, Backstreet Rookie, Lovestruck in the City, and The Sound of Magic.