Watch: Harley Quinn co-creator Bruce Timm on her legacy

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Sep 7, 2017

You were supposed to be just a one-off henchwoman on a single episode of Batman: The Animated Series.

Instead, almost 25 years later, you're now the most popular Halloween costume in the universe and considered to be the Fourth Pillar of the DC Universe (behind Superman, Batman and Wonder Woman).

You've come a long way, puddin'. And you've made Bruce Timm a proud (co-) papa.