Warg-riders

Warg Riders were a type of warrior where a goblin or orc would mount a warg, the gigantic, bloodthirsty race of wolves from the North. Warg Riders first appeared during the Battle of Five Armies, where they killed many men and dwarves before being beaten. These incredibly strong warriors next appeared in The Two Towers, where they participate in The Battle of Helm's Deep, fighting for the traitor Saruman.