Matthew Lyn Lillard (born January 24, 1970) is an American actor, voice actor, director, and producer.
His early film work includes Chip Sutphin in Serial Mom (1994), Emmanuel "Cereal Killer" Goldstein in Hackers (1995), Stu Macher in Scream (1996), Stevo in SLC Punk! (1998), Tim LaFlour in Senseless (1998) and Billy Brubaker in Summer Catch (2001).
He played Shaggy Rogers in two live action Scooby-Doo movies, Scooby-Doo (2002) and Scooby-Doo 2: Monsters Unleashed (2004), and in animation, he's been the voice of Shaggy since Casey Kasem retired from the role in 2009.Lillard's later film roles include Jerry Conlaine in Without a Paddle (2004), Dez Howard in The Groomsmen (2006), Joey in Home Run Showdown (2012), and Jack Rusoe in Return to Nim's Island (2013).
While much of his work is comedic in nature, Lillard has given dramatic performances in The Descendants (2011), Trouble with the Curve (2012) and Match (2014).
He made his directorial debut with the coming-of-age drama Fat Kid Rules the World (2012).
Since 2018, Lillard also stars as Dean Boland, the husband of Christina Hendricks' character Beth Boland, in the ongoing television series Good Girls.