Real Name: Curtis Base
Occupation: Criminal
Marital Status: Single
Base of Operations: Gotham City
Height: N/A
Weight: N/A
Eyes: N/A
Hair: N/A
First Appearance: N/A
Created By: N/A

When wealthy Curtis Base began to commit crimes disguised as the Joker, the real Joker came out of retirement to reclaim his reputation. After a brief encounter with his impostor, the Joker, Curtis Base, Commissioner Gordon, and the Batman all met at the Ace Chemical Plant for a final showdown. Base wanted to be the one true Joker and jumped into a vat of chemicals to make his wish come true. Unfortunately, the acid he jumped into was more corrosive than the one the real Joker had fallen into many years before, and as a result the acid ate away at Base.