Maggie Grace and Mackenzie Foy to star in Breaking Dawn movies

Actresses Maggie Grace and Mackenzie Foy are joining the Twilight movie franchise! The pair will be starring in upcoming Breaking Dawn movies.

27-year-old Grace — who played Shannon Rutherford during the first two seasons of Lost — will play Irina, a member of the Denali coven who blames the Cullens for the death of her lover.

Foy, a 9-year-old actress with no feature-film experience, is close to taking the role of Renesmee, Edward and Bella’s vampire/human love child.

Breaking Dawn, the fourth and final novel in Stephenie Meyer’s Twilight series, is being split into two films, the first of which will hit theaters on Nov. 18, 2011.