The Robot Yeti are robots created and used by the Great Intelligence on Earth. Which were large and hairy, fur covering everything except the eyes, claws, and feet. Yeti robots had green eyes and yellow teeth. The Doctor encountered several types of Robot Yeti with the Mark I types being equipped with Web-guns, the Mark II types firing webs from their claws, and the New World types being impervious to bombs. All of them were were armed with fangs and claws, and possessed augmented durability and strength.