A self-proclaimed villain, Bushmaster uses any means necessary to climb the Maggia gang's ladder and to manipulate others into doing his dirty work. His lust for power is matched only by his cruelty—from beating up his brother and killing innocents, Bushmaster’s will stop at nothing to get revenge on those who've crossed him.
Born in the Caribbean, John McIver and his younger brother Quincy grow up on the street. John's faster and savvier than his brother when it comes to escaping trouble, and John often beats Quincy for his failures. He even kills a shopkeeper.
Years pass and John works as muscle for Herve Argosy, a gun runner, but when he recruits Quincy on a job, it cost his brother all four limbs after falling into a motorboat propeller. Mocking his brother’s misfortune, John relocates to Europe to run Argosy’s trade under the name Bushmaster.
Bushmaster is an experienced streetfighter. When he works for the Maggia, he often employs costumed agents, such as Shades and Comanche, as well as numerous conventional gunmen.
When Bushmaster receives a variant of the Super-Soldier Serum treatment, he grows to possess great superhuman strength and durability, greater than that initially possessed by another recipient of the serum, Carl Lucas, AKA Luke Cage.