Werewolf Vargr

Werewolf Vargr's are seemingly a new type of random enounter added to Skyrim with the add on expansion/DLC Dawnguard. They can be encountered like any other wild animal or bandit/hostile NPC and will spawn randomly around Skyrim.

While they are werewolves, they will attack the Dragonborn and any followers he/she may have with them on sight even if they are a werewolf themself and even if they are in their Beast Form. This is believed to be because they are wild and feral and are werewolves that have lost control over themselves.