Kogan was a proud Tharn warrior who, like the rest of his tribe, managed to survive the apocalypse unscathed. While hunting in the wastes, Kogan had an unfortunate encounter with a large armored bear, which managed to tear his arm off before running away with it. It should have been the end of Kogan then and there, but as he lay bleeding out, he was discovered by another scavenger crew that took pity on him.
The crew nursed Kogan back to health while their mechanik built Kogan a new mechanikal arm out of scrap parts. Gracious for what they had done for him, Kogan spared the crew instead of bringing them back to his tribe as a meal. When Kogan returned, his tribe immediately spurned him for the metallic monstrosity that had replaced his natural arm.
They claimed he had defiled their tradition and god, and they cast him out. Exiled, Kogan now wanders the wastes as a lone survivor, but one who has had his eyes opened to the world around him. He isn’t trusting of many outsiders, but he is willing to give most a fair chance before deciding if they are a potential ally or his next meal.