Since that episode, the two have been inseparable in their various appearances together. Nightwing, Harley Quinn, and Batman in ‘Batman and Harley Quinn’ | Warner Bros.
In ‘Batman and Harley Quinn,’ Harley teams up with Batman to take down Ivy It’s an abandon neighborhood full of toxins that only Ivy can withstand and she injects Harley with some stuff to help her survive it too.
Ivy has to step in to help them both escape from authorities and they run to Poison Ivy’s hideout house in Toxic Acres. Of course, who else is there? Poison Ivy. Joker fires Harley Quinn and to prove she can “do crime,” she plans her own heist at a museum. Several episodes later, in “Harley and Ivy,” the two finally meet for the first time. In the Batman: The Animated Series episode “Joker’s Favor,” Harley came onto the scene as Joker’s girlfriend and lackey, though she’s highly skilled. But it was in the 1990s that she and Harley Quinn first met. Poison Ivy appeared first in 1966, and became a bombshell villain ever since. RELATED: Harley Quinn and Poison Ivy’s Newest Development Isn’t Going Anywhere If ‘Harley Quinn’ Gets a Third Season Poison Ivy in ‘Batman and Harley Quinn’ | Warner Bros.
