Harley Quinn, real name Harleen Quinzel, was the sidekick and on-off girlfriend of the Joker. She occasionally struck out on her own, and often served as a companion and accomplice to Poison Ivy.
When the Joker dies, Harley and Ivy move to Retroville, where they form a team of villains with Blackfire and Cyborgman. This series has 4 seasons and 1 movie.
