Jeff Dunham (born April 18, 1962) is an American ventriloquist and stand-up comedian who has also appeared on numerous television shows, including Late Show with David Letterman, Comedy Central Presents, The Tonight Show and Sonny With a Chance. He has four specials that run on Comedy Central: Jeff Dunham: Arguing with Myself, Jeff Dunham: Spark of Insanity, Jeff Dunham's Very Special Christmas Special, and Jeff Dunham: Controlled Chaos. Dunham also starred in The Jeff Dunham Show, a series on t