Justin Jacob Long is an American actor, comedian, writer, and producer. Long is known for his film roles, particularly in comedy and horror films. For his notable work in horror cinema, he has come to be recognized as a scream king. He notably appears in the films Galaxy Quest (1999), Jeepers Creepers (2001), Dodgeball (2004), Herbie: Fully Loaded (2005), Accepted (2006), Idiocracy (2006), Dreamland (2006), Live Free or Die Hard (2007), Zack and Miri Make a Porno (2008), Drag Me to Hell (2009), He's Just Not That Into You (2009), Alpha and Omega (2010), Best Man Down (2013), Tusk (2014), The Wave (2019), Barbarian (2022), and Weapons (2025), as well as voicing Alvin Seville in the live-action Alvin and the Chipmunks film series.