Justin Jacob Long (born June 2, 1978) is an American actor. He is known for roles in such films as Jeepers Creepers (2001), (2004), Accepted (2006), Alvin and the Chipmunks (2007), Live Free or Die Hard (2007), Alpha and Omega (2010) and Comet (2014). He played Warren Cheswick on the NBC TV series Ed, and appeared with John Hodgman in TV commercials for Apple's "Get a Mac" advertising campaign.