Frank Caliendo is an American actor, voice actor, comedian, and impressionist. He is best known for his work in the Fox Network TV series MADtv and as the in-house prognosticator for Fox NFL Sunday. In 2007 and 2008, he performed his impersonations on his own show Frank TV, which aired on TBS. He is also known for his impressions of Charles Barkley, NFL color commentator John Madden, sportscaster Jim Rome, comedian Robin Williams, actors Morgan Freeman and William Shatner, and United States Presidents George W. Bush and Bill Clinton, and for his frequent appearances in The Bob & Tom Show.
For Disney, he voiced Sergei in Gravity Falls.