10 Best Harley Quinn Episodes of Batman: The Animated Series collider.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from collider.com Daily Mail and Mail on Sunday newspapers.
No one could have predicted that Birds of Prey character Harley Quinn would last beyond her first comic appearance, much less become the title character in a series that cracks the best-seller charts every month, not to mention her own DC movie.