Techno-Necromancy: Errol

This segment is heavily headcanon!

Errol was created with remnants of Erol's body, as well as KG Robot parts, into a strange, bio-mechanical cyborg unlike Erol in personality and desires. He amassed control of the Metal Heads, KG Robots, as well as held direct communication with the Dark Maker Ship, and it begs the question: Is this strange bio-mechanical vessel controlled by the Dark Makers? Considering his body had been killed with Dark Eco, it wouldn't be too far fetched if they connected to him through the eco.

The original cyborg was crafted by the KG after Erol died, most likely in a way similar to Baron Praxis's own mechanical components, albeit much more complex, and much more mechanical than biological, but perhaps the death via Dark Eco triggered something in the Dark Maker Ship.

Jak controls a Dark Maker Bot through the The Astro-Viewer, and Dark Makers are much more advanced than an elf, so this could be a case of intense technopathy, especially considering that Errol either recognizes Jak in the desert, or the Dark Makers recognize Mar (why would Erol's response to Jak be "wait, not you!"). With how Errol's goals align with the Dark Makers (wanting to destroy the planet itself), and he acts much more irrationally than Erol had (which could also just be the dark eco), and he has access to the ship itself, it could very well be the case of possession of some kind.

Errol via hologram recognizing Jak in the Wasteland