Cthilinianth

The Cthilinianth, more commonly known as the Governors, are a race of hyperadvanced transdimensional beings responsible for the creation of the universe. The Governors treat the universe as an enormous laboratory, conducting various experiments in which they populate a celestial body with organic life that is programmed with a randomized set of traits, then observe the lifeforms as they evolve, flourish, and die out, sometimes providing subtle influence upon certain events to direct the experiments in whatever manner they see fit.

Anatomy & Physiology
The physiology of the Governors largely defies human understanding. The Governors seem to simultaneously exist on multiple dimensional planes. An unknown but presumably large portion of a Governor's body is normally obscured from human view as these parts of its body exist on higher dimensional planes. A Governor can, however, use these parts of its body to interact with lower dimensional planes, and when it does, these parts of its body become partially visible as they intersect with our dimension, typically appearing as shimmering flashes of dark color.

The Governors are neither organic nor synthetic, and what this means is entirely unknown. They can also change form on demand, even able to change their mass likely by shifting matter between dimensions.