Maybe not the worst ever but I kinda hate Frank Caliendo. Sure, he does some good impressions- he does a good Bush, Robert Deniro, an okay impression of the cast of Seinfeld, but what really pisses me off about the guy is his John Madden impression. Talk about milking something for all it's worth to the point of nauseum. And it's John Madden, for God's sake! It's not as if that's the most relevant person to goof on. His stint on Mad TV really annoyed me because they did the John Madden thing all the time. Now I think he has some permanent gig impersonating him on a sports show. I really just find that extremely pathetic. He's not so much a comedian or impressionist as he is a glorfied impersonator of a semi-well-known sports commentator.