Warning: Spoilers for Batman '89: Echoes #5!Jack Nicholson's Joker might be jealous of Harley Quinn's new digs. Harley Quinn has become one of the latest additions to the Burtonverse, as the scrapped ...

The combination of falling into the vat of chemicals and the back alley surgery that ended with his face twisted into a permanent smile eradicated whatever sanity Jack Napier has left, and he wasted ...