25. WILL FERRELL
See, there's this man-child who latches onto Will Ferrell in most every role he plays and good luck getting the little guy to let go. As a result, we are treated to inspired displays of dolt-trapped-in-the-headlights hijinks, be it in the form of Old School's keghead Frank the Tank (who goes from repressed to regressed to undressed) or Talladega Nights' Ricky Bobby, the dumbest, most earnest NASCAR driver on the circuit who's also the most comfortable with his sexuality. Sometimes that bumbling man-child hysteria falls on deaf ears, as in 2009's early-summer flop, Land of the Lost, but we're not counting Ferrell out just yet.
Image Credit: Michael Tran/FilmMagic
From Sacha Baron Cohen to Conan O'Brien, Stephen Colbert to Tina Fey, we're counting down the names of the entertainers who make us laugh the hardest