The Dranconians are an old alien civilization which has since become extinct. They were once masters of a mighty empire and developed technology which granted them with the most powerful mental abilities, including transferring memories, fusing their minds together into a single entity, creating or destroying matter at will, taking over the minds of other beings and even their bodies (causing them to physically assume a Dranconian appearance).
They were served by mechanical beings of many kinds, and seem to be the original creators and masters of the strange artificial brain-like life forms of which the Cybernetic Leader is one. Their servants also included a species of rock-like humanoids which may or may not be artificial in origin. Though they originally come from Dranconus, they have been present at some point on planet Gamma VI, where some of their robotic servants still remain.
- Lost in Space - S02E22 - "The Cave of the Wizards"