Utgartha-Loki- The ruler of Utgard. It was Utgard-Loki who was responsible for the deceiving of Thor and his companions during Thor's Journey to Utgard.

Loki is known as the trickster god, the mischief maker, the father of lies and deceit. Loki is counted among the Æsir gods, but he is not one of them. Some say that he and Odhinn were blood brothers, which is why none of the gods dared to harm Loki, no matter how mischievous and malevolent he becomes. Loki is associated with the hearth fires and over time came to be associated with evil. It was due to Loki that the gods received the gifts of Ilvadi's sons and of Brokk and Sindri. It was due to Loki's words at Ægir's feast and his hand in the death of Balder that the gods finally set out to capture and punish Loki.