Shawn as Gossip Girl Love Interest? Not Inconceivable!
Wallace Shawn by Jason Kempin/WireImage.com
Final details have trickled in regarding
's guest-casting of
The Princess Bride
's utterly inept villain will play the father of Serena's new beau, Aaron (
's John Patrick Amedori), as originally reported by
. It has since been confirmed that Shawn's character, in keeping with the
books, will also emerge as a love interest for Blair's mother, Eleanor.
We've also nailed down Shawn's first air date: His multiple-episode arc kicks off in the heat of sweeps, on Nov. 11. -