8. Lena Dunham. Who knew someone could get so famous so fast? Girls star, Lena Dunham as acquired quite the fan following in such a short amount of time. Mega-famous people are raving about her and her performance in her show. She's going to be in something called, Supporting Characters. Her main staple is going to continue making people love her. She has broken out this year at a surprising speed and something tells me that's going to carry into next year.