Nick
Much like Demi, Nick will be over the moon to celebate the birthdays of three important people in his life! With much of his social circle in attendance as well, it goes without saying he'll probably be flitting around talking to everyone (and will at some point also probably carve out time in the night to spend with Lita, unless Jamie says otherwise) so if anyone wants this nice guy/ray of sunshine for a scene just holler. :)