Ho many Harley Quinns have there been?
via SyFy
You know what they say about Harley Quinn: she’s definitely four different characters dating back to the Golden Age. Well, maybe “they” don’t say that, but it’s true — the concept of Harley Quinn did not begin with Harleen Quinzel’s first appearance in 1992. In fact, the concept of a Harlequin as a fourth-wall-breaking jokester dates back to the late 1500s at least, but in DC Comics alone, there were four unique Harleys cruising around the neighborhood.