User blog comment:General MGD 109/Which god next?/@comment-67.176.162.157-20120809022331

Pazuzu:     King of the demons of the wind, and in some stories is one of the angels who fell from Heaven, along with Lucifer.

Lucifer's right-hand man, Pazuzu could serve as a new big bad antagonist, shades of ole Yellow Eyes (perhaps seeking revenge for the death of his brother, Azazel, while trying to bust out Lucifer) could make for some great exchanges with Crowley and Castiel, as well.