5. Brit Marling
Geek Credentials: The troubled protagonist in cracking indie sci-fi Another Earth, and the cult leader who claims to be from the future in the brilliant Sound of My Voice.
Who She Should Play: Episode 7 needs more spunky, likable female characters, and given how Abrams has fared with casting these sorts of characters in his works to date, I don't think he'll have any trouble. It just might be worth him taking a glance at Marling, and given how she's very much an up-and-comer still rooted in the indie world, this would be a considerable step up for her career. Her enigmatic character in Sound of My Voice proves that she can handle the spiritual, otherworldly-type characters with ease, and given how this franchise is sorely in need of more female Jedi, this would be a fantastic way to make it happen.