15. Kate McKinnon
The heat has been building around Kate McKinnon. McKinnon made Forbes Magazine's "30 Under 30" in the entertainment industry section, and has been heralded by several media commentators as "the next Kristen Wiig."
As a performer at UCB, McKinnon was very active in sketch and solo forms. One of her one-woman shows, Kate McKinnon on Ice, was a character showcase that flexed some of the same comic muscles that would make her a stand-out at SNL, where she's known for impressions of Ann Romney, Penelope Cruz, and Ellen DeGeneres. McKinnon will soon celebrate her one year anniversary on SNL, where she is the first openly gay cast member.