6 of 6
Where to see her: "Paper Heart"
Copyright © 2009, The Los Angeles Times
What she's done: Yi has made the most of her small roles thus far, first as the stoner girlfriend of one of Seth Rogen's roommates in "Knocked Up" and also as a page who wins the heart of Kenneth on "30 Rock."
What she's playing: Yi plays herself in this documentary / story about love that garnered much acclaim at Sundance. Alongside Hollywood "it" boy and real-life boyfriend Michael Cera, Yi is sure to win hearts.