The Mad Hatter ( Jervis Tetch ) is a fictional Batman character who appears in comic books by DC Comics . He dresses-up as the Mad Hatter from Alice in Wonderland . He usually uses had-guns, poison smoke guns, or mind-control things. He used to be a scientist who invented mid-control things before being fired.

He was voiced by Roddy McDowall in Batman: The Animated Series .

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