Terry O'Quinn (born July 15, 1952) is an American actor best known for his role as John Locke on the television series Lost, for which he won an Emmy Award. Born in Sault Ste. Marie, Michigan, he began his acting career in the 1980s, appearing in films like Blade Runner and TV series such as The X-Files. His performance style is noted for its depth and subtlety, often portraying complex characters. O'Quinn's work has earned him critical acclaim and a lasting legacy in television.