The Ancient Beings (Universe L-137)

The Ancient Beings, or simply referrfed to as Great Old Ones, is the  common term used by the three factions to catagorize a group of unfathomably ancient and incredibly powerful alien beings.

Summary
These Ancient Beings were the ones that ruled over the Earth long before man or any other species lay claim to it. Aside from their cosmic origins, the Great Old Ones often do not share much of anything in common, coming in many shapes and (almost always colossal) sizes, with fundamentally different natures. With the massive, and immense power that they possesed, they were seen as "The Forces of Nature" itself. They are able to alter reality, with a glimpse of a thought, and can wipe out the existence of many species in an instant.