10 Doctor Who Fan Theories Better Than What We Got

First introduced in the excellent episode Blink, the Weeping Angels are truly sneaky assassins that can only move when they're unobserved.

Nobody actually knows where they came from, at least according to the Doctor, but some have theorised that they actually share a link with the TARDIS' best pilot. No, not River.

One idea suggests that the Angels are actually Time Lords in one form or another. In some theories, they're from the distant future, sent backwards through time by a cosmic event. In other explanations, becoming an Angel is what happens to a Time Lord when they die.

Both entities are ancient, both use the energy of time to live, and both are known and revered across the universe. The Angels are even referenced when the Time Lords return in The End of Time. It's not entirely out of the question that they're actually one and the same.

Some argue that revealing too much of the Angels' backstory would kill their mystique, and yeah, that's probably true, but just imagine the chills you'd feel if a theory like this was ever confirmed.