Part One A pre-credits sequence! “C” is Stephen Fry. Going for the stunt-casting, then, “MI6 has never countenanced the possibility of extraterrestrial life.” Within the context of this show, that’s the dumbest thing I’ve ever heard. It’s the guy who played Waris Hussein! I like the faux John Barry “James Bond” music. “The name’s Doctor. The Doctor.” O is the Master! As is traditional, there’s n…