This little girl isn't an actor, she was actually on Toddlers and Tiaras (even though i dislike that show) I watched her episode and i thought she was beautiful and talented.
Nessie - Emma Bolger/Sarah Bolger/Emmy Rossum
Jacob - Steven Strait
Bella - Kristin Stewart
Edward - Robert Pattison
Jasper - Alex Pettyfer
Rosalie - The blonde with Nessie when she's getting ready for her wedding