Troll

Trolls were creatures from Earth myths and legends. Trolls existed in the Land of Fiction. Some of them were converted into Cybermen. (BFA: Legend of the Cybermen) The Fomoir of Tír na n-Óg resembled trolls by design. (NA: Cat's Cradle: Witch Mark) The name was also used as an insult; Susan Foreman called the Master a troll. (EDA: Legacy of the Daleks)