Fastball (whose real name is John Malone) was a former baseball player whom the Overmaster equipped with an exoskeleton, gloves and the requisite wrist bands to enable him to pitch potentially deadly explosive spheres. He was drafted into the Overmaster’s first Cadre, but after their defeat at the hands of the Justice League, Fastball went underground and was largely forgotten. Another villain with a similar motif, named Overthrow, was often mistaken for Fastball. The real Fastball finally returned to a life of crime, rejoining the Cadre under the leadership of Doctor Polaris in San Francisco. The villains were defeated by the Power Company.