Matthew Lyn Lillard (born January 24, 1970) is an American actor, voice actor, director, and producer. He is known for portraying 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), Billy Brubaker in Summer Catch (2001), Jerry Conlaine in Without a Paddle (2004), Dez Howard in The Groomsmen (2006), Joey in Home Run Showdown (2012), Jack Rusoe in Return to Nim's Island (2013) and Shaggy Rogers in both Scooby-Doo (2002) and Scooby-Doo 2: Monsters Unleashed (2004). In animation, he has been the voice of Shaggy since Casey Kasem retired from the role. Lillard also stars as Dean Boland in the ongoing television series Good Girls.