There have been multiple versions of Harley Quinn in the "Batman: White Knight" universe. 1 / 9
The first followed the classic Harley origin: Psychiatrist Harleen falls in love with the Joker. 2 / 9
She left him after finding out he beat Jason Todd aka Robin nearly to death interrogating him. 3 / 9
The second Harley, Marian Drews, joined Joker after he threatened her life at work. 4 / 9
She claims it was the first time she felt alive, and fell in love with his twisted personality. 5 / 9
After he temporarily cures himself, she becomes Neo-Joker, holding his place while he's gone. 6 / 9
She steals a giant freeze gun and holds the city hostage until Joker returns. 7 / 9
Harleen eventually captures her, and she's sent to Arkham Asylum. 8 / 9
They cross paths again in Harleens own series, where Neo-Joker is now with Poison Ivy. 9 / 9