Unit 54-B "Salvage"

A former private in a spacefaring military, Unit 54-B turned away from the navy once he hit a service life of three years. He found himself drifting from place to place, planet to planet, eventually finding himself in a bit of a rough spot. Having been heavily damaged, Unit 54-B had to have a lot of his body replaced by mechanical prosthesis, making him even more robotic.

Unlike other protogens, Salvage has no need to eat. There's no organs inside there save for a brain, which is only half of a brain, hooked up to a computer designed to replicate the other lobe of the brain near-flawlessly. However, his mechanical limbs aren't durable in the slightest, as the person who repaired him did a rush job and only had materials salvaged from a scrapyard, hence his nickname: "Salvage"

Despite this, he lives on peacefully, although if he does have to fight, chances are he'll lose.