Millie Bobby Brown is only 13, and yet she's already way cooler than us. Not only is she insanely talented, but she's also taken over the fashion world and made more than a few famous friends along the way. Oh, and, you know, she got to cuddle up to Zac Efron. From her co-stars to her adoring fans, read on to take a look at all the people who are totally smitten with her.