Origin
Nothing is known about Big Thunder. He was born with, or at some point acquired, metahuman powers.
Creation
Big Thunder was created by Grant Morrison and Yanick Paquette. He made his first appearance in Seven Soldiers: Bulleteer #3.
Major Story Arcs
Seven Soldiers of Victory
Big Thunder is hired, along with Bulleteer, as a bodyguard for Suli Stellamaris. After their charge is poisoned he offers to attend to her while Bulleteer handles the fans. Later, he offers to form a team with Mind-Grabber Man. He is struck, and completely unharmed, by an arrow meant for Bulleteer.
Powers and Abilities
Big Thunder is superhumanly strong and durable.