[b]The Custodians[/b]

The Custodians were once Angels, of every rank from Cherubim to Seraphs and even one Archangel, who rebelled against The One Deity and were cast down into the Universe, a thousand or so light-years from Historia, after their rebellion. After being cast down, the Custodians were made mortal, albeit with 'Metahuman' powers tied to their genetics, and unable to tap into Magic. Yet despite this, they retained their overwhelming knowledge of the physical world and sciences and used it to found first a civilization, then a Star Empire which oppressed lesser races. 

There are two factions of Custodians, with the first being [b]The Collective[/b], which confusingly applies to both the thirteen former Seraphs and single Archangel which were now reduced into Metahumans, and their multitudes of followers and slaves in their Star Empire. The second is a resistance movement, [b]The Repentant[/b], which are led by one former Seraph and their followers, both 'original' Fallen and the children born to the Custodians when they became mortal.

And finally, it is rumored that the Unfallen Custodians, messengers of The One, still exist in Heaven, reforged into transcendent beings with additional powers which allow them to mentor and coordinate 'Risen Martyrs', the souls of mortals whose virtues In life had made them adequate replacements for the Custodians' duties in Heaven and Hell (which in this setting is closer to Purgatory and a place to reform and redeem sinners instead of torturing them forever). These Unfallen are detested by The Collective, who forbids mentioning their names in their dominions on pain of excruciating death.

As for the Fallen Archangel who now leads The Collective? He is now known as [i]Ubersmench[/i], and his powers give him near-invulnerability, super-strength which can destroy planets, flight, and heat vision as long as he is underneath a Yellow Sun...