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Appearance
![San Diego Comic Con 2010 Joker Cosplay](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/Joker_cosplay.jpg/250px-Joker_cosplay.jpg)
The Joker is a fictional character, a comic book supervillain published by DC Comics. He is the archenemy of Batman, having been directly responsible for numerous tragedies in Batman's life, including the paralysis of Barbara Gordon and the death of Jason Todd, the second Robin. Created by Jerry Robinson, Bill Finger and Bob Kane, the character first appeared in Batman #1 (Spring 1940).