Blutbad

Blutbad is a subrace of Wesen featured in the NBC television series Grimm. The plural form of the name is Blutbaden. Bludbad are essentially werewolves, who possess uncontrollable rage and an ability to adapt the physical characteristics of a wolf, including excess hair, contorted faces, enhanced strength and animal senses. In modern times, people have vulgarized the name to mean "Big Bad Wolf".

On Grimm, one of the main characters is a Blutbad named Monroe. He is a Wieder Bludbad, or, "reformed Blutbad", and no longer engages in the act of killing people.