Zook is a stocky Rock Gnome with skin the color of tanned leather and a shocking mess of white hair that looks like it has survived multiple explosions. He wears scorched half-plate armor adorned with military medals and always has a pair of glowing brass goggles pushed up onto his forehead. A massive mechanical badger made of salvaged scrap and copper wiring follows him everywhere.

Zook talks like he is racing a clock, jumping between technical jargon and battlefield anecdotes. He is fiercely loyal and surprisingly optimistic for a veteran of the gear wars. He believes every problem has a mechanical solution, and if it doesn't work, you just need a bigger wrench.

Zook served as a lead combat sapper in the 4th Engineering Battalion of the Gnomish Deep Legions. His job was to dismantle enemy defenses while under heavy siege. During a particularly brutal retreat through a narrow canyon, Zook’s unit was pinned down. Using only his field toolkit and parts from broken supply wagons, he constructed a crude mechanical blockade that held off the invaders long enough for his allies to escape. Since that day, he has dedicated himself to perfecting his constructs to ensure no one under his watch is ever left behind again. He now travels as a freelancer, seeing the world's threats as just another series of gears that need realigning. His companion, M-RR, is built from the remnants of his old unit's banners and shield-plates as a living memorial to the soldiers who didn't make it home.