Gossip Girl has had many a mischievous villain in its six seasons of Upper East Side-tromping drama. While some have been recurring nightmares (cough Georgina cough), others have been mere devious dalliances (remember Juliet and her sad Harlem bunker?). With the final season looming large in our collective psyche, we’re anxious to see who trots back onscreen. Will Vanessa (Jessica Szohr...
