Jon Stewart
AGE: 44
OCCUPATION: Comedian, actor, host of Comedy Central's The Daily Show
NUMBER OF TIME COVERS: 0
PREVIOUS APPEARANCES ON THE TIME 100: 1
PRO: Winner of nine Emmys who hosts a show that averages 1.4 million nightly viewers and is often cited as the only source of news for many television viewers.
CON: Has been accused of fostering a self-righteous attitude towards politics in America's youth, ultimately rendering them complacent and apathetic.