Titus B. Welliver is an American actor. He is best known for his portrayals of the Man in Black in Lost, Silas Adams in Deadwood, Jimmy O'Phelan in Sons of Anarchy, and the title role in the televisio

The Man in Black is the main antagonist of the American ABC television series Lost. He appeared as a cloud of black smoke until the final episode of season five where he appeared as a middle-aged man