Maggie Grace cast as Irina in Breaking Dawn

Maggie Grace has officially been announced for the role of Irina in Breaking Dawn, Maggie has most famously played Shannon Rutherford in Lost for 2 seasons and opposite Liam Neason in "Taken". JUST in case you forgot who Irina is:

Irina

Full Name:  Irina 
Status: Vampire
Date of Birth: 1005
Originally from:  Slovakia, but currently lives in Denali, Alaska
Hair color: 
Eye color: Vampire gold/black
Height:
Physical description:
Occupation:
Family members: Kate, Tanya, Carmen, and Eleazar 
Nick Names:
Hobbies:
Personal history:  One of the original Denali “sisters” and an originator of the myth of the succubus.  She is a “vegetarian” and leads a very peaceful lifestyle.  She, like her sisters, loves men  all men, even human men. 

Twilight Lexicon Irina Bio