Board Thread:General Discussion/@comment-132.235.45.245-20151116140701/@comment-6881629-20151116173246

There we go then they can overpower light because their only imitating a shadow, unlike the darkness in Apocrypha. I'm not saying it absolutely isn't a reference just that in my opinion they may both have been inspired by something else.

Both Dr Who and TES often take inspiration or make references to folklore and superstition.