As a bona fide triple threat in comedy terms, Tina Fey writes, stars, and produces the insanely witty NBC comedy series 30 Rock, which revolves around the life of Liz Lemon, a nerdy television writer obsessed with sandwiches ("with extra bread") and Star Wars. And if that isn't impressive enough, Fey was also head writer and a cast member of Saturday Night Live—and wrote the screenplay for the 2004 movie Mean Girls.
Long before Amy Poehler and Kristen Wiig, it was Gilda Radner who had crowds roaring with the not-ready-for-primetime players on Saturday Night Live—holding her own alongside her mostly male counterparts. By nailing characters like Roseanne Roseannadanna with unabashed gusto, Radner was able to add an Emmy award to her shelf. Pop in her Best of DVD and watch her hilarious parodies with a group of girlfriends.