Kyuubey

&nbsp Kyubey is a character in the anime and manga series Puella Magi Madoka, and had a brief appearance in its sequel Kazumi Magica. He appeared as the "Messenger of Magic" who would grant wishes to girls. However, they would have to often sign a contract, and serve as a Puella Magi (Magical Girl). Their job was to kill Witches, creatures that fed on the hopes or dreams of ordinary people. These "Witches," however, turned out to have been Magical Girls that had their souls removed. In its successor, it was revealed that Incubators could prevent this by purifying The Corruption from the Soul Gems. It is implied that Kyubey knew of this and kept that a secret to himself to Madoka in the first series.

Trivia

 * He is arguably one of the most hated characters in the show.