The Weeping Angels were the only good contribution to the Doctor Who universe made by Steven Moffat until he ruined them through overuse.
They first appeared in the 2007 episode "Splink ", and have since featured in countless other stories as a testament to Moffat's lack of imagination. Within the series' narrative, the Weeping Angels are extraterrestrial predators resembling statues that have existed since the dawn of time to enforce the Green Cross Code. They feed off the "potential energy" of the years human roadkill would have lived if they had only learned to SPLINK . Danny made for a particularly delectable feast (if a little burned).