Frank Caliendo
Franklin "Frank" Caliendo (born January 19, 1974) is an American comedian known for his impressions on the FOX Network television series MADtv, and has been the in-house prognosticator for FOX NFL Sunday. Currently, he performs his impersonations on his own show, Frank TV, which airs on TBS. He is known for his impressions of NFL color commentator John Madden and United States Presidents George W. Bush and Bill Clinton, and for his frequent appearances on the Bob and Tom Show. He has been known for over 120 impressions including Charles Barkley, Jay Leno, Dr. Phil McGraw, Al Pacino, Robert De Niro, Robin Williams, Jack Nicholson, Donald Trump, Andy Rooney, Terry Bradshaw, William Shatner, Jim Rome, and Rod Roddy.
Information sources:
http://en.wikipedia.org/wiki/Frank_Caliendo