Paparazzi shots taken on the set of season four of Mad Men, currently filming in Pasadena, reveal a recognizable face in a mid-sixties costume. Unless this Southern-accented young lady, whom we’ve seen on Glee, The Office, and (in a much bigger role) on True Blood, just decided to dress up in her best vintage for a set visit, we think we’re looking at at least a guest star on the show, and probably a new love interest for Don Draper, knowing Don Draper. [Madmen_tv/Livejournal]