Firefly (and Serenity) fans will remember her as River. Now she gets to play an un-killable fighting machine sent from the future who will fight other robots and also learn to navigate the catty hallways of high school.
Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.