Michael Emerson (born September 7, 1954) is an American actor who is best known for his roles as Benjamin Linus on Lost (2006–2010) and as Harold Finch in the CBS series Person of Interest (2011–2016). Other prominent roles include Zep Hindle in the horror film Saw (2004) and the recurring role of Cayden James on Arrow (2017–2018). He currently...