Michael Emerson (born September 7, 1954) is an American actor who is best known for his roles as serial killer William Hinks on The Practice, Benjamin Linus on Lost, Zep Hindle in the first Saw film, Cayden James on Arrow, and Harold Finch in the CBS series Person of Interest. Emerson has also worked extensively in theater and narration. He has won two Primetime Emmy Awards and been nominated for three others, as well as receiving other awards and nominations. He currently stars as Dr. Leland Townsend in the Paramount+ thriller series Evil.
