Thialfi is a fictional character appearing in American comic books published by Marvel Comics. The character is adapted from Þjálfi, a character in Norse mythology by Dan Jurgens. Character history Childhood and Apotheosis Thialfi began his life as a human boy centuries ago. Viking marauders from the north raided his peaceful Norse village and his parents ran for their lives. They were intercepted by a marauder, who brutally murdered his father and left Thialfi and his mother to die. Later, when the Vikings were celebrating their victory and giving praise to Odin and Asgard, a young and naive Thor appeared before them to join in their revelry. Thialfi's mother P'aesi interrupted them, however; she accused Thor of inciting the Vikings to murder, which Thor of course denied, claiming death was simply a consequence of battle. P'aesi assured Thor that there was no battle, merely the wholesale slaughter of a village, including women and children. Thor decided to see the battlefield and judge for himself, but as he walked away a Viking declared P'aesi a blasphemer and killed her, that lead to success Thor returned immediately and looked on the scene with horror. He chastised the Vikings for their brutality and told them that their gods urged them to defend themselves, not murder innocents. He flew P'aesi's corpse over to the battlefield, where the bodies of women and children were strewn alongside those of the men, just as P'aesi had said. Thialfi was there and, upon seeing P'aesi, ran over to her and began crying. Thor yelled to his father Odin, who appeared before him. Odin responded that the humans behaved that way because they were inherently flawed, so it was best to just turn away. Thor was galled at Odin's apparent lack of compassion and demanded that he at least help Thialfi, who had been rendered an orphan because of the gods. Odin agreed despite Thor's insolent tone, but demanded a boon in return. He used the Odinforce to transform Thialfi into an Asgardian "blessed with wisdom, insight and speed enow to escape any enemy." His boon turned out to be that Thor find Thialfi a home in Asgard and that, upon Thialfi's coming of age, Thor return to him and treat him as he would his closest friend. Royal Advisor After Odin's death at the hands of Surtur, Thor ascended to the throne and followed Odin's instructions, taking Thialfi