Terry O'Quinn
Terrance Quinn (born July 15, 1952), known professionally as Terry O'Quinn, is an American actor. He is best known for portraying the role of John Locke in the ABC drama mystery series Lost, which ran for six seasons (2004–2010). He also played the title role in The Stepfather and Stepfather II, and played Peter Watts in the crime drama series Millennium, which ran for three seasons (1996–1999).