They Could Be...

I'm looking for someone who would work as a younger sister of Rosario Dawson. Should be around 20-23-ish, look like she could take care of herself and preferably have semi to long hair but really at this point I'm not too picky. Any help would be greatly appriciated.

Who: William Moseley, Emilie de Ravin
They could be: Siblings
Credit To: winchesterway