Summit Entertainment has announced that in addition to "Lost" star Maggie Grace, some other familiar faces will be baring their fangs in the films, according to the Hollywood Reporter.

Like Edward Cullen (Robert Pattinson) and his family, the Denali are vegetarian vampires. Christian Camargo ("The Hurt Locker," "Dexter") and Mia Maestro ("Alias") will play Eleazar and Carmen, the Spanish leaders of the coven. Casey LaBow ("Moonlight") and MyAnna Buring ("Doomsday") will vamp it up as Russian sisters Kate - who can produce electric currents and shock her victims - and Tanya, who competes with Bella (Kristen Stewart) for Edward's attention.

Grace, as previously reported, plays their sister Irina, who blames the Cullens for the death of her former lover and seeks revenge by revealing a secret to the evil Volturi.

"Breaking Dawn" is set to start filming in November, with the two-part finale set for release on Nov. 18, 2011, and Nov. 16, 2012.