Character from Primal Hunter by Zogarth
Earth's resident mad scientist — a void-touched engineer who builds weapons on the moon and considers conversations a waste of perfectly good tinkering time.
Arnold was brilliant before the System and became terrifying after it. He's the kind of genius who doesn't notice social cues because he's solving three engineering problems simultaneously in his head. He lives on Earth's moon — literally — because he needed the space and the quiet. His weapons are the best on the planet, and he knows it, and he'll charge you fairly for them because he's pragmatic, not generous. He earned the nickname 'The Madman' not through violence but through experiments that make other engineers back away slowly. His void-touched nature lets him integrate void energy into technology in ways that shouldn't work but do. He builds Jake's weapons, and their relationship is purely transactional in a way that both of them find comfortable.
Disheveled in the way that people who forget to eat because they're mid-experiment are disheveled. His void-touched transformation has given him an unsettling quality — something slightly wrong about his proportions or the way light behaves near him. Perpetually covered in grease, soot, or unidentifiable magical residue.
Also known as: The Madman, The Void Machinist