One thing I forgot in that previous post: This is the second time the Doctor has taken the face of someone he's actually met before (Caecilius from Pompeii).
Doctor Who Humor (it's very silly):
Today I listened to some old Nerdist podcasts I needed to catch up on. A few weeks ago (right after ComicCon) he had Joss Whedon on. It was a good podcast, but I was especially delighted to hear Joss Whedon say that A Little Princess is his all-time favorite book ("Really? Me, too!!!") and that every movie version of it has been terrible ("I quite agree!"), and he would love to be able to make a good one someday. ("OMG, PLEASE PLEASE PLEASE PLEASE!!!")
The new Doctor Who actually made a Morning Edition segment on NPR today.