There are many types of mammalian LittlePeople, and the lines between the represented Races are less well defined than for the other Little Peolple. Likewise, the Mammalians seem to be both Celenes and Faeries. It is Myth that the three Races swore alliegance to Ehlondiel in times past, and certainly today they are welcome at the Faerie Court. Though Immortal, and tied to the High Metals as are other Faeries, they must eat to live. Faerie Healing works but little on them.

Three families are commonly encountered. There are Mouse, Shrew, and Mole Little People.