Harley Quinn is one of the rare characters created for a cartoon and was not part of the Batmanverse that succeeded. Her grand entrance has her now knock down doors for adult content in DC Comics!
*** MATURE LANGUAGE AND CONTENT ***
Harley Quinn Cartoon Summary
Harley Quinn supervillain queen and here is why.
The series follows Harley Quinn’s adventures after she breaks up with the Joker and receiving help from Poison Ivy, Clayface, Doctor Psycho, King Shark, and Sy Borgman in her plans to become a member of the Legion of Doom. — Wikipedia