Caltrons are bio-mechanical space-dwelling constructs that have only recently been encountered in USFP space. Little is known about the origins of the Caltrons, however evidence shows that they are likely originate from a distant star system with, or perhaps even beyond, the galaxy.

The constructs do not seem to have their own intelligence, instead functioning as a gestalt entity. Single ‘Primary’ caltrons are the basic construct, with larger caltrons being composed of multiple primaries, that for a single, powerful entity.

Communication has been unsuccessful, aside from a single recorded encounter with an AI consciousness, not thought to be part of the original gestalt caltron brain.