Jeffrey Dunham is an American ventriloquist and 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 six specials that run on Comedy Central: Jeff Dunham: Arguing with Myself, Jeff Dunham: Spark of Insanity, Jeff Dunham's Very Special Christmas Special, Jeff Dunham: Controlled Chaos, Jeff Dunham: Minding the Monsters, and Jeff Dunham: All Over the Map.