From Wikipedia, the free encyclopedia Jeff Dunham (born April, 1962) is an American ventriloquist and stand-up comedian who has also appeared on numerous television shows, including Star Search, Late Show with David Letterman, Comedy Central Presents, The Tonight Show and Sonny With a Chance. He is familiar to Comedy Central audiences for his three specials on that network: Jeff Dunham: Arguing with Myself, Jeff Dunham: Spark of Insanity, and Jeff Dunham's Very Special Christmas Special. Dunham...