Chaos

"I am disappointed, but not for the reason you think. I was hoping that this would be fun for you. Because you see, I'm not asking you to be my influence, my weapon on Nua, because you already are."

Chaos is a god-like being who first appeared in episode 15 of TAZ: Graduation. They seem to be able to access multiple worlds or planes and have an interest in Sir Fitzroy Maplecourt. Their motivation seems to be to spread chaos across worlds, and they are implied to be the one to give Fitzroy his wild magic. They met with Fitzroy in a place that is not on Nua.

Appearance
Chaos is nine feet tall with iridescent skin resembling mother of pearl, specifically with green, purple, and silver ripples. They wear "the finest clothes you've ever seen", which includes a burgundy cloak with gold embroidery and onyx lining. The description of the clothes implies they are humanoid. They have completely white eyes.