Jeffrey William Robinson "Jeff" Dunham 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 also starred in The Jeff Dunham Show for one season on the network in 2009. His style has been described as "a dressed-down, more digestible version of Don Rickles with multiple personality disorder". Describing his characters, Time observes, "All of them are politically incorrect, gratuitously insulting and ill tempered." Dunham has been credited with reviving ventriloquism, and doing more to promote the art form than anyone since Edgar Bergen.