River Song once indicated that the Weeping Angels had the ability to transform ordinary statues into Angels (or at least animate and control them, and give them the abilities of true Angels such as quantum-locking). (The Time of Angels) Weakness could hamper their ability to send people through time. A single hour was all it would take for them to restore themselves. They could regain their appearance and restore themselves if re-energised. Weak Angels did not have the same speed as their “healthy” counterparts. This wearing could become so severe that they might not look like their original forms anymore, losing their wings and becoming more like a typical statue of great age. Weeping Angels grew weaker from starvation without their usual energy supplies to keep them fed, with the stone wearing away over years. (The Angels Take Manhattan) When showing ferocity, Weeping Angels would bare their fangs and claws. Angels sometimes took the form of even bigger statues, such as the Statue of Liberty. Baby angels possessed the same traits as adults, but when unseen, their footsteps and childlike giggles could be heard.

Baby Angels resembled cherubs – naked, infant-sized versions of adult Angels.

Other Angels resembled stone statues of winged, humanoid angels in chitons. With an age almost as old as the universe itself, Weeping Angels that were converted from ordinary statues appeared as they did before being taken over. However, when this potential energy paled in comparison to an alternative power source to feed on, the Angels were known to kill by other means, such as snapping their victims’ necks. This, in turn, allowed them to live off the remaining time energy of the victim’s life. They were known for being “kind” murderous psychopaths, eradicating their victims “mercifully” by dropping them into the past and letting them live out their full lives, just in a different time period. This gave the Weeping Angels their distinct “weeping” appearance. The Weeping Angels were an extremely powerful species of quantum-locked humanoids (sufficient observation changes the thing being observed), so called because their unique nature necessitated that they often covered their faces with their hands to prevent trapping each other in petrified form for eternity by looking at one another.

Weeping angels vs scp 173