6. Donald Glover
DERRICK Comedy, Glover's former sketch comedy group, supplemented its Internet content with live shows at the UCB Theatre on its way to becoming online sensations. His success since DERRICK has been well documented. Not only is Glover a series regular on Community, he's written for 30 Rock, appeared numerous times on Late Night with Conan O'Brien, and, of course, raps as Childish Gambino.