Harleen Quinzel used to study behaviour of zoology at S.T.A.R. Labs. One of her tasks was to calm down Titano for his training in space flight.[1] Eventually, she would grow to be a psychiatrist in Arkham Asylum, which led to her encounter with The Joker. After donning the Harley Quinn persona, she allies herself with Poison Ivy to commit several crimes.




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Batman Villain(s)
This character, team or organization, is or was primarily an enemy of the Batman, or the Batman Family as a whole. This template will categorize articles that include it into the category "Batman Villains."

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