During Ragnarok, Fenrir the wolf kills Odin and is then killed by Vidar. The Midgard Serpent Jormungandand and Thor kill each other.
What role does Hel, Loki's other child by Angrboda, play?
Mythology & Folklore Stack Exchange is a question and answer site for enthusiasts and scholars of mythology and folklore. It only takes a minute to sign up.Sign up to join this community
None, as far as we know. She is not mentioned at all in either the poem Voluspa, which describes the event of Ragnarok, nor in Snorri's version of events in the Prose Edda. All he says is that when Loki arrives at the battle-field of Vigrid, he will have "all Hel's people with him". (Faulkes: 51)
After the Ragnarok, "Balder and Hod will arrive from Hel", where they were both living since their deaths earlier in the mythology. (Faulkes: 56) Snorri also says that there will be places for good and bad people after Ragnarok, the bad one being at Nastrands. Whether Hel will occupy it, or whether she died, is unknown.
Most likely, almost everyone will go to the underworld, where the beloved goddess hel reigns. Even dead warriors, since Odin would be dead during ragnarok. Hel wins in the end