Jeff Dunham
Jeffrey Dunham ( born April 18 , 1962 ) is an American ventriloquist , stand-up comedian and actor 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" . 
<triplet> Comedy Central Presents <subj> stand-up comedian <obj> genre