6. Conan O'Brien
This hilarious show host has an incredible history - he worked for SNL, The Simpsons, Late Night with Conan O'Brien, and of course, The Tonight Show and Conan. And it all began at Harvard, where Conan served as president of the humor publication the Harvard Lampoon and studied history and literature before graduating with honors. Harvard runs in Conan's fam - his father was a medical professor there.