Justin Jacob Long is an American actor and comedian. He is known for his film roles, particularly in comedy and horror films, notably appearing in Galaxy Quest, Jeepers Creepers, Dodgeball, Herbie: Fully Loaded, Accepted, Idiocracy, Dreamland, Live Free or Die Hard, Zack and Miri Make a Porno, Drag Me to Hell, He's Just Not That Into You, Alpha and Omega, Best Man Down, The Wave, and Barbarian, as well as voicing Alvin Seville in the live-action Alvin and the Chipmunks film series. From Wikipedia