Ji Chang-wook (Korean: 지창욱) 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 (2010–2011), and has had notable lead roles in television series such as Warrior Baek Dong-soo (2011), Empress Ki (2013–2014), Healer (2014–2015), The K2 (2016), Suspicious Partner (2017), The Worst of Evil (2023), and Welcome to Samdal-ri (2023–2024). He has also appeared in the film Fabricated City (2017).