Lunkhead was a local criminal of Gotham who did battle with Batman, ending with Lunkhead going into a coma for several months. After waking up and serving time, Lunkhead found work as a delivery driver. Lt. Gordon personally sought out Lunkhead upon learning he was involved in a mental experiment, designed to reprogram criminals and why Batman was interested. While Lunkhead couldn't answer why Batman wanted to know about it, he did know a woman was involved as another test subject.

An unknown time later, Lunkhead stole a car by lifting it over his head. He was quickly stopped by Batman and Katana. While in prison, Magpie used Lunkhead to escape.