Twilight: Breaking Dawn got a new villain in Maggie Grace, who formerly appeared in Lost, according to reports on Tuesday.
Grace, 27, will appear as Irina, a member of the rival Denali vampire coven, and will serve as an antagonist in the next two movies.
Mackenzie Foy, 9, will play the daughter of Edward and Bella, Renesmee.
Breaking Dawn is the final novel by Stephenie Meyer in the Twilight series. The final two films will be based on the novel.
The first of the films based is set for release by Summit Entertainment on Nov. 18, 2011. The final film will come out in Nov. 2012.
Writer Melissa Rosenberg and director Bill Condon are working on the scripts for the first film, which goes into production in November.