Now that heriess/socialite (so many of them these days) Lydia Hearst has had her debut role on Gossip Girl, tumblrers are wondering which Manhattan media celebs could possibly turn up on the show next. Oh that's kind of fun! Let's see, you'd have to have dating columnist Julia Allison, of course. Socialite Leven Rambin, for sure. (Plus, she's already an "actress"). Men's Vogue writer and man-about-town Hud Morgan could turn up somewhere, along with a few other notable friends/foes of this here blog. Read our seven casting ideas, after the jump.