Mad Hatter

Jervis Tetch, also known as The Mad Hatter, is a former neuroscientist working at Wayne Enterprises and a Gotham City villain who is obsessed with Lewis Carroll's Alice's Adventures In Wonderland. This would come into play when he found a girl named Alice. He started to fall madly in love with her and ended up going down a path of criminal activity when she rejected him.

He took up the identity of The Mad Hatter and kidnapped Alice, making her play the main protagonist of Alice's Adventures In Wonderland. When she was rescued by Batman, The Mad Hatter pledged to avenge himself on Batman for having ruined his fantasy.

The Mad Hatter has since descended deeper into darkness, becoming not only an obsessive enemy of Batman, but a serial killer and criminal mastermind.

Despite his obsessive nature, Tetch is considered a genius who developed a technology to control people's minds. He uses this through hats and cards.