Hrimhari encountered the New Mutant Rahne Sinclair when she and her teammates were stranded in Asgard due to the machinations of the Trickster God Loki. He instantly became enamored with her, and Rahne was likewise responsive to his feelings, though her stern upbringing by Reverend Craig initially prevented her from fully reciprocating. They were then captured by Loki and forced to wear a pair of Collars of Obedience. The collars turned them into monstrous wolves, Grimfang and Bleakheart, who were forced to track down the X-Men and New Mutants. Hrimhari and Rahne were eventually freed from Loki's control by Cannonball, who destroyed the collars with an enchanted sword.
Hrimhari met Rahne again shortly after when the New Mutants return to Asgard to stop Hela's plan to reconquer Asgard with Valkyries. Hrimhari would help Rahne and the New Mutants stop Hela, although they would be separated yet again when Rahne returned to Earth. 
During the fall of Asgard, Frost Giants fought and killed Hrimhari's entire pack. Hrimhari tracked the Frost Giants quickly and while locked in battle with them, Hrimhari found Ragnarok. Hrimhari was reborn along with Asgard on Midgard (in Oklahoma). Hrimhari claims he was reborn for the purpose of finding his true love, Rahne Sinclair.
While Rahne was recovering X-Force's second mission and her brainwashing in Angel's Aerie in the Colorado Rocky Mountains, Hrimhari found her, quite to her surprise. Now reunited with his former lover, Hrimhari explained to Rahne the fall of Asgard, the murder of his pack, and his own rebirth on Midgard. Hrimhari then revealed to Rahne that he can now shapeshift into a fully human form, and they consummated their newly rekindled romance.
But in the throes of afterglow, next to a roaring fire on the floor of Angel's Aerie, Hrimhari and Wolfsbane were attacked by three of the Frost Giants who slaughtered Hrimhari's pack. At first they fled, but then Hrimhari and Wolfsbane decided they could no longer run and turn to face their attackers. After narrowly defeating the Frost Giants, the seemingly uninjured Rahne fainted due to unknown causes, faintly called out for Elixir.
Hrimhari rushes her back to Angel's Aerie, where he was met by Archangel and Warpath, who accompany him to the X-Men base on Utopia. Unfortunately, Utopia was under attack by Selene's undead mutants and Elixir was still in a comatose state due to the strain exerted by time traveling and in healing Surge from the modified Legacy Virus.
Wolfsbane condition continued to worsen, and in desperation Hrimhari called upon the death goddess Hela. Hela offered Hrimhari an even trade; a life for a life. Except she asked him to choose between his true love, Rahne, or their unborn child, which was the reason Rahne was dying. In the end, Hrimhari chose to exchange his life for Elixir's, knowing that Elixir could save both Rahne and his unborn cub. As Hrimhari and Hela disappeared he told a recovered Elixir to save Rahne and tell her "I love her...and...I will find a way back to her." To save Wolfsbane's life, Elixir had to strengthen her body (to undefined limits) to endure the Asgardian embryo growing inside her.
Hrimhari was taken by Hela to Niffleheim where he was forced to become a part of her army of the dead. When the X-Factor team traveled to Las Vegas to comfort Hela at her Inferno Club and save Pip the Troll, Hrimhari was among the army of death which fought them. Hrimhari was able to smell Rahne's scent on Shatterstar and immediately attacked him. Shatterstar was able to hold his own against Hrimhari and learned that Hrimhari was actually the father of Rahne's unborn child, not Rictor as Rahne had led the team to believe.
War of the Realms
During the Dark Council's invasion of Earth, Hrimhari made a deal with the Enchantress where he and Tier could be allowed to come to Earth and reunite with Rahne but on the condition that all three not interfere with in the Dark Council's war. Hrimhari and Tier also aided Sabretooth in bargaining with the Enchantress to give him a magic necklace that would Sabretooth to control Magik so he used her teleportation powers to aid the Dark Council after the Black Bifrost was destroyed. However, Magik proved difficult to control. So, Sabretooth kidnapped Rahne so he could use to force Magik to cooperate, but Hrimhari forced Sabretooth to back down. When Rahne demanded Sabretooth release Magik, Hrimhari asked Sabretooth to obey Rahne's request. Rahne and Sabretooth then got into fight, forcing Hrimhari to step in and take out Sabretooth.
Hrimhari and Tier accompanied Rahne and Magik as they reunited with the X-Men but were unable to aid the X-Men fight off the Dark Council's armies with Hrimhari trying to prevent Rahne from fighting as well as it would violate the deal he made with the Enchantress. The deal was ultimately broken when Rahne attacked Sabretooth to stop from killing Magik and taking control of his pack of Wolf Gods. Hrimhari and Tier were forced to return to Hel, with Hrimhari telling Rahne that he hoped to reunite with her in the next life.
- Hrimhari possesses the conventional superhuman abilities of an Asgardian man, although he is descended from Fenris.
- Hrimhari has the ability to shapeshift into a wolf-like humanoid, or into a full wolf at will. Since being reborn on Midgard, Hrimhari can now shapeshift into a fully human form.
Hrimhari is skilled in unarmed combat and has defeated Frost Giants.
- 24 appearance(s) of Hrimhari (Earth-616)
- 1 appearance(s) in handbook(s) of Hrimhari (Earth-616)
- 2 minor appearance(s) of Hrimhari (Earth-616)
- 8 mention(s) of Hrimhari (Earth-616)
- 1 mention(s) in handbook(s) of Hrimhari (Earth-616)
- 12 image(s) of Hrimhari (Earth-616)
- 1 quotation(s) by or about Hrimhari (Earth-616)