- a dragon, a son of Hreidmar and the brother of Otter and Regin: he killed Hreidmar for the cursed treasure of Andvari and was killed in turn by Sigurd at the instigation of Regin.
- the son of Hreidmar, whom he killed to gain the cursed treasure of Andvari. He became a dragon and was slain by Sigurd while guarding the treasure
