Stekkjarstaur, also known as Sheep Raper, is a supporting antagonist of the Christmas comedy-horror film Krampus and is portrayed by Gareth Ruck. It is one of Krampus's Rapist Elves that arrives to rescue Der Klown near the film's climax. Stekkjarstaur's mask resembles a demonic creature with horns and a flailing tongue used to rape sheep.
Stekkjarstaur, just like its partners, takes gleeful pride in carrying out the wishes of its master, Krampus. (because they are a rapist they often play submissive with Krampus)