Frank Caliendo September 7, 2012

Comedian and impressionist Frank Caliendo gained fame on 'The Late Show with David Letterman' in addition to appearances on 'The Bob & Tom Show,' Opie & Anthony and Howard Stern. He joined the cast of 'Mad TV' in 2002 with his uncanny impressions of John Madden, Al Pacino and Robin Williams, among others. He left in 2007 and starred in his own TBS show, 'Frank TV.'