J.R.R TOLKIEN'S LEGENDARIUM

Individual characters in Tolkien's legendarium are divided into:

-Enigmas-anomalies, since they are mysterious characters and their origin is not stated, like Tom Bombadil, Tim, River-Woman or Goldberry

-Characters that may just be part of legends rather than people that actually existed, like Lonely Troll, Man in the Moon and Tarlang

-Huan, the Hound of Valinor