The Mad Hatter's real name is Jervis Tetch. Tetch modelled his criminal persona after The Hatter, the eccentric top-hatted host of the bizarre tea party in Lewis Carroll's Alice's Adventures in Wonderland. This is due to his obsession with hats and a startling resemblance to the character as depicted in Sir John Tenniel's illustrations.He made his first appearance in Batman #49 in October 1948.