This is a trickier version of the Doctor, and a trickier version of the companion. These two episodes is where that comes to a head. The Doctor and Clara are as heroic, and charming, and loveable as the Doctor and his companion have ever been, but they do things that make you uncomfortable at times. You can still like them even through they do things that are a bit, ‘Wow, that’s really not good. You’re really not supposed to do that’. They’re not goody two-shoes, either of them.
Steven Moffat – Dark Water/Death In Heaven Preview (DWM 479)