Its claimed that their will be two new faces joining the cast .
Mackenzie will play Bella and Edwards daughter Renesmee who is half vampire and half human. Renesmee grows and developes at an almighty rate so as a baby who is a few months old she has the capacity of a toddler. Mackenzie has also appeared in tv shows such as Flash forward and Till death, Garnet hill and is due to appear in an episode of Hawaii Five O.
Maggie will join Breaking Dawn and appear as Vampire Irena who has an almighty thirst for Bellas blood . Maggie most recently appeared in the long running tv drama Lost.