Sigourney Weaver is signing on for her first TV series. The Alien and Ghostbusters star will lead Greg Berlanti's six-episode USA drama Political Animals, where she'll play a character not unlike Hillary Clinton: a former First Lady who becomes Secretary of State after an unsuccessful bid for the presidency. (She's also got a philandering husband, but in this version, they're divorced.) James Wolk will play Weaver's son, and that's a pretty good cast already, but if Weaver was newly willing to do TV, why didn't Ryan Murphy snap her up to go toe-to-toe with the alien queen herself (Jessica Lange) in season two of American Horror Story? Imagine the fireworks!