Lee Byung-hun (Korean: 이병헌; born July 12, 1970) is a South Korean actor, singer and model. He has received critical acclaim for his work in a wide range of genres, most notably Joint Security Area (2000); A Bittersweet Life (2005); The Good, the Bad, the Weird (2008); the television series Iris (2009); I Saw the Devil (2010); and Masquerade (2012). His critically acclaimed film Inside Men (2015) won him the Best Actor prize in three prestigious award ceremonies: 52nd Baeksang Art Awards, 37th Blue Dragon Awards and 53rd Grand Bell Awards — a feat that has yet to be repeated. Lee has five films—Joint Security Area, The Good, the Bad, the Weird, Masquerade, Inside Men and Master—on the list of highest-grossing films in South Korea.
In the United States, he is known for portraying Storm Shadow in G.I. Joe: The Rise of Cobra (2009) and its sequel G.I. Joe: Retaliation (2013), and starring alongside Bruce Willis in Red 2 (2013). He portrayed T-1000 in Terminator Genisys (2015) and Billy Rocks, a knife-wielding gunslinger, in The Magnificent Seven (2016). Lee was the first South Korean actor to present an Oscar at the annual Academy Awards in Los Angeles and is a member of the Academy of Motion Picture Arts and Sciences. Lee and Ahn Sung-ki were the first South Korean actors to imprint their hand and foot prints on the forecourt of Grauman's Chinese Theatre in Hollywood, Los Angeles.
He is also known as Lee Byeong-heon, 이병헌 and Byung Hun Lee.