Arleen Sorkin - Harley Quinn / Dr. Diane Pershing - Poison Ivy/Dr. Harley Quinn first appeared in the Batman: The Animated Series episode "Joker's Favor", as what was originally supposed to be the animated equivalent of a walk-on role; a number of police officers were to be taken hostage by someone jumping out of a pop out cake, and it was decided that to have the Joker do so himself would be too bizarre, although he ended up doing it anyway. Dini thus created a female sidekick for the Joker, who would become his love interest.
Arleen Sorkin, a former star of the soap opera Days of Our Lives, appeared in a dream sequence on that series in which she wore a jester costume; Dini used this scene as an inspiration for Quinn. Having been friends with Sorkin since college, he incorporated aspects of her personality into the character.
The item "BATMAN ADVENTURES #12 CGC SS 9.4 Hand-Signed ARLEEN SORKIN 1st App Harley Quinn" is in sale since Saturday, June 23, 2018. This item is in the category "Collectibles\Comics\Modern Age (1992-Now)\Superhero\Batman".
The seller is "theautographdog34" and is located in Sherman Oaks, California. This item can be shipped to United States.