When Tina Fey was a Saturday Night Live cast member, the show's former head writer was better known for hosting Weekend Update than doing impressions. But the 30 Rock creator returned to the show in 2008 to perform her most memorable character: a flirty, vacant-eyed, non sequitur-spouting version of former Alaska governor and vice presidential hopeful Sarah Palin (pictured with Amy Poehler as Hillary Rodham Clinton).
Memorable Quote: "What an amazing time we live in. To think that just two years ago, I was a small town mayor of Alaska's crystal meth capital. And now I am just one heartbeat away from being president of the United States. It just goes to show that anyone can be president!"