Rumor has it that Pet/Wanda's gonna be played kwa Emily Browning, but there's been no official confirmation. I think it's supposed to be "una surprisa."
Pet will be played kwa an actress named Emily Browning.
If wewe want to see some pictures of her playing Pet, wewe should check out Us Magazine's collector's edition of The Host. It features some exclusive picha of Emily Browning as Pet.