Harley Quinn

Dr. Harleen Quinzel, better known as Harley Quinn, is a homicidal maniac and the archenemy of Batman. Her full origins are unknown, but one of the most common version indicates that she fell into a vat of chemicals which turned her skin white and left her face permanently locked in a double Glasgow Grin. Completely unpredictable with no regard for human life, Harley Quinn finds murder and mayhem funny, and is perhaps the most dangerous woman on Earth with a body count stretching into the thousands, all centered around her obsession with destroying the Dark Knight and to see the world burn.

Appearances

 * Batman 1
 * Batman 7
 * Batman 13
 * Justice League 14