Evil Wizard

The Evil Wizard, by Hermes called "the crystal space devil", was an evil warlock who destroyed Zagtar, the defender of space. When Amy suggests the Planet Express crew summon Zagtar, Hermes reminds her of the Evil Wizard having destroyed him.

Whether the Evil Wizard is a canon or non-canon character is not known, and will depend on the style of the "Reincarnation" episode.

Production
The Evil Wizard was first seen in the storyboard of "Reincarnation", released by the Countdown to Futurama on June 13, 2011. The notes describe him as "a dark hooded warlock".