Bad Wolf (fictional character)

From Tardis Wiki, the free Doctor Who reference

The Bad Wolf was the tormentor of the Three Little Pigs, in the fairytale of the same name.

In one version of the story, he ate the first two pigs before being eaten himself by the third pig. In another version, the first two pigs survived, with the wolf being killed by the third pig. In a third version, the wolf ran away after being defeated by the pigs. (PROSE: Citation Needed)