Powers: None. He does not possess Multiple Man's power to replicate. Cortex, a duplicate himself, hypothesized that Madrox's dupes lose the ability to replicate if they are separated from him for too long.
Bio: John Maddox was a duplicate of the Multiple Man, James Madrox, who was sent out to study religion. The duplicate became an episcopal minister who married and fathered a son. When Madrox sought him out to reabsorb his dupe, John threatened to shoot Jamie. Jamie won the resulting contest of wills, and John submitted to absorption. However, Jamie decides to let the dupe remain free.