UrRu

The UrRu, also known as the Mystics, are an ancient race of kind four-armed wizards from the 1982 dark fantasy film The Dark Crystal. They are the benevolent counterparts of the malevolent Skeksis, one of the two races born from the divided UrSkeks.

Appearance
Their faces were thrust forward on elongated necks with heavily white maned hair and were deeply wrinkled with runic patterns, which represented each urRu's lines of thought. They walked with a swaying motion, and had long tails which were insufficient to counterbalance the weight of their heads.

Trivia

 * Brian Froud based the Mystics on a previously designed troll from his 1977 book "The Land of Froud". In order to keep the two creatures separate for licensing purposes, he designed the Mystics to have four arms. This way Froud would keep copyright of his trolls while Jim Henson got the right to the Mystics.