David Letterman

It's common knowledge that the comedy writing business is still a boys' club, but a woman's uphill climb in the writers' room is more steep than you might realize. A new article in Vanity Fair, written by former 'Letterman' staffer Nell Scovell, points out: "At this moment, there are more females serving on the United States Supreme Court than there are writing for 'Late Show with David Letterman,' 'The Jay Leno Show,' and 'The Tonight Show with Conan O'Brien.' Out of the 50 or so comedy writers working on these programs, exactly zero are women."