Colin Wallis

Armsmaster/Defiant, Colin Wallis -The leader of Brockton Bay’s Protectorate  when the story began. A tinker specializing in miniaturization. Fights with his Halberd and a heads-up display that incorporates a combat style simulator and a lie detector, among other features. 

Met Taylor on her first night out right after she and the Undersiders had fought Lung, and convinced her to keep her part in Lung's apprehension secret — which, incidentally, let him take credit for it. 

Unfortunately for mutual good relations between him and Taylor, Armsmaster got in deep trouble when Lung began to suffer severe tissue damage from the spider bites while in custody, which no doubt contributed to how Taylor's offer to become the mole for the Protectorate in the Undersiders was harshly refused. Their relationship generally went downhill from there.

His power allows him to condense and interweave technology to create devices that are highly efficient and take up less space than they should.  Armsmaster sported a costume in midnight blue and silver, with a high-tech halberd packed with technology and a visor that covers his eyes and nose. He wears a neatly trimmed beard.

He was silently placed under house arrest in the PRT headquarters after the Leviathan fight for breaking the truce twice (first by arranging the death of villains to give himself a one-on-one shot against Leviathan, second by outing Skitter as a reverse mole), but after Mannequin targeted him he was allowed to escape by Dragon so he could help her fight crime as the hero Defiant.