20 Harlequinesque Facts About Harley Quinn

She has come a long way from being the Joker's sidekick.

On September 11th (yikes), 1992 (okay, whew), Harley Quinn made her debut on Batman: The Animated Series just as a walk-on foil for the Joker to break up the sausage fest in his gang. Creator Paul Dini never imagined that the character would not only show up in other episodes, but be fully immersed in the DC Universe due to popular demand. Over the past 20 years, Harley Quinn went from being the abused member of Joker’s gang to having her sense of agency to having multiple comic book series, her own movie, and her own cartoon show.

Whether you like her or don’t, Harley Quinn’s popularity isn’t going anywhere. There isn’t a comic book convention out there that doesn’t have hundreds of fans cosplaying the mallet-wielding, high-pitch giggling heroine. Yet there are some behind the scenes facts about Harley that even the geekiest superhero fans may not be aware of.

That’s where we come in. Here are some informational morsels about Harley Quinn that may surprise you.