Moloch was a stage magician and illusionist.

From his humble beginnings as an entertainer, Moloch transitioned into a criminal career, eventually becoming something of a kingpin. He eventually spent time in prison, where he reformed and found religion.

After his release, he worked for Dimensional Developments.

In his criminal prime, he was a prominent nemesis to both Nite Owls, Ozymandias, and Doctor Manhattan. His many dealings with Doctor Manhattan are rumored to have caused the cancer he is suffering from. Rorschach breaks into his home to interrogate him on a semi-frequent basis.

• Nite Owl lamented that Moloch's transition into a more realistic and modern criminal made him "no fun to fight."