Sects and Deviants
The Anunnaki are the established villains of the Cosmic Era, working towards their endgame of dominion of humanity. But the secret organization is not a unified monolith, there are a number of factions at work inside of the society. The three most important and powerful are the Sephiroth Cabal, the Ultra Cabal, and the Pauper Cabal.
Chokmah, Geburah, Malkoth, and other names drawn from Qabbalah, Gnostic Christianity, and roots tracing back to Mesopotamia. Of the different cabals, the Sephiroth are likely the most dangerous. Their energies are bent towards delving into Imbrian technology, putting dangerous things into research centers, like teratomorphs, and the most likely to set off dimensional fatigue events, just to see what happens. The other cabals don't pay too much mind to the Sephiroth, as their concerns are the least involved with global influence, power, and finance. They do stir the pot on occasion, but their idiosyncracies make them powerful, if erratic allies.
The Sephiroth are scientists, researchers, occultists, and sorcerers.
Hector, Poseidon, Hercules, Ajax and other names drawn from classic mythology. There is no greater reason behind the names, other than defined roles. The names are 'titles' and are handed down by succession, thus the anunnakus Ares is typically the leader of the military arm, while the role of Zeus is typically the leader. The Ultra are the leaders of the Annunaki, as they have the most power and influence, if not the most cash.
The Ultra are warlords, generals, politicians, and orators.
The Pauper's take simple names, favoring irony as they are the wealthiest and name themselves poor. A particularly heartless Pauper might call himself Valentine, while one devoted to spreading carnage and profiting from war might deem himself Mahatma. The Paupers are the core of the Anunnaki. They do not lead, but it is their power that guides the greater inertia of the hidden masters, and the economies of entire worlds.
The Paupers are CEOs, philanthropists, and masterminds.
Additional Ideas (1)
worshipers of the gods given to them by thier betters, they are held in thrall by a devotion to the other Annunaki
They are the workers,miners,foot soldiers and revolutionaries
There are 5 ranks of Anunnaki recruits: alpha, beta, gamma, zeta, and omega. These are the uninitiated minions of the Hidden Masters.
The 'Devoted' who don't know their gods are false