Board Thread:Character Discussion/@comment-5679696-20161008012502/@comment-25375217-20161019172603

If Doppelganger is what they're called in the episode, that's the term we should use. We can specify "Evil Doppelganger" and "Good Doppelganger" if that helps.

That's actually an interesting point (David/James, not Doppelganger). David's little plot point in Season 5 was that he believed he would have been no better than James if their roles were switched. So that would strongly imply that he sees his darkness as James. I like that.