Liam Pádraic Aiken (born January 7, 1990) is an American actor. He has starred in films such as "Stepmom" (1998), "Road to Perdition" (2002), and "Good Boy!" (2003), and played Klaus Baudelaire in "Lemony Snicket's A Series of Unfortunate Events" (2004), based on the series of books.
Liam Padraic Aiken's acting name is Klaus Baudelaire. He has been mentioned in a series of books and has starred in several films.