The Orphan-Maker, whose real name appears to be Peter, was rescued by the cyborg he calls Nanny from captivity by the mysterious mastermind, Mister Sinister. Mister Sinister had apparently been planning to exploit Peters abilities for his own ends, but instead decided that Peter was uncontrollable and intended to kill him. If Peter possesses any active or latent superhuman powers, they have yet to be revealed, but Peter has commented that "Nanny found a way… to keep me from growing into what I would have become." It is not yet known exactly what Peter meant by this statement.
Peter became the first of the "Lost Boys and Girls" that Nanny "rescued." Nanny believes that it is, up to her to save mutant children from the dangers that face them in today's world. She has made Peter her assistant in this task, outfitting him with an armored battlesuit and weaponry, and sending him to abduct mutant children and to battle anyone who opposes Nanny. It is standard procedure for Peter to kill the parents of the children he abducts; hence, Nanny gave him the alias of "the Orphan-Maker."
In the course of aiding Nanny, the Orphan-Maker has clashed with members of the Avengers, the Fantastic Four, X-Factor, and the X-Men.
The Orphan-Maker speaks and acts like a small child, but, since he has not yet been depicted without his suit of armor, it is unclear whether he is actually a small child within that battlesuit or an adult who still has a child's emotional and intellectual level.
He later showed up in France where he was going to kill Cartier St. Croix, the father of the mutant known as M but before he fired his glove (and gun) fell of. He later returned to Nanny and told her about this. She said that it meant that he was growing up.
Nanny then built him a new more powerful suit which he used to abduct a deformed young mutant who was holding his classmates hostage. He was however stopped by the young mutant team Generation X and he fled.
