Batman has consistently had one of the largest and best rogues galleries in comics. Characters like The Joker, The Penguin, The Riddler, and Two-Face all debuted in the pages of a comic book, and have followed the Caped Crusader when he appears in movie and video game adaptations. Not every enemy of Batman originally came from the comics, though. Harley Quinn is now a household name, and she first appeared in Batman: The Animated Series before being folded into the comic books alongside the rest of Batman's villains.