The Actors are beings unaffected by determinism, that have free will.
Their name "actor" comes from their ability to actually act, outside of the will of determinism.
Natural Actors, or anomalies, were found to have existed before the end of science, but the True Age of Actors came about with the synthesis of the first Actor by the Neon Hermetists.
The first synthesized actor was tasked to position itself into the Longest End, meaning that it would effectively take control of all things, and of all of time, to steer the sequence of events allowing itself to exist within the longest lasting possible timeline of the computing occurrence.
Actors have no names, and their number is unknown, it is possible that multiple actors, or multiple instances of the same actor, are competing for the Longest End.