Firefighter Johnny Williams was transformed into a clay-based creature by an explosion in a chemical plant. When he realizes his transformation, he accidentally kills a prostitute. Horrified and stricken with guilt, he plans to commit suicide, until he encounters Hush and the Riddler, who tell him that the chemicals turned him into a Clayface. They manipulate Williams, holding the promise of a cure in exchange for his services; all he had to do was go through Tommy Elliot and Jason Todd to hurt and confuse Batman.
After discovering the manipulation and knowing he would die, Williams agreed to continue helping against Batman in exchange for protection for his family.
- 9 Appearances of Jonathan Williams (New Earth)
- 4 Images featuring Jonathan Williams (New Earth)
- Quotations by or about Jonathan Williams (New Earth)
- Character Gallery: Jonathan Williams (New Earth)