26. John Oliver
After six years as The Daily Show's Senior British Correspondent, Oliver is still finding things in America that are too ridiculous to leave unmocked. The Birmingham, England, native has been an essential part of the show's campaign coverage for two presidential elections; this spring he sat down with former Presidential candidate Herman Cain for an extended interview. (You won't hear a politician give a speech against an invading alien menace on Meet the Press, but Oliver got one out of Cain.) Oliver turned down a regular gig on NBC's Community to stay with Jon Stewart, and he's brought his boisterous, exquisitely silly style to his stand-up series on Comedy Central, which has featured everyone from Maria Bamford and Eugene Mirman to Hannibal Buress and his Daily Show colleague Kristen Schaal.