Fire Demons are a race of magma-like humanoid creatures that originate from Muspelheim, one of the Nine Realms. They were ruled by their lord Surtur until his destruction in 2017 at the very end of Ragnarök.
Centuries ago, Odin, the king of Asgard, traveled to Muspelheim to battle and defeat Surtur, the leader of the Fire Demons, taking the Eternal Flame with him to prevent Surtur from reaching his full strength in order to cause Ragnarök, the prophecized destruction of Asgard.
In 2017, Thor was captured by Surtur and the Fire Demons in Muspelheim. Thor managed to escape with the help of Mjølnir, so Surtur summoned his Fire Demons to kill him. However, Thor effortlessly fought off the Fire Demons with a powerful blast of lightning. After killing a significant number of the Fire Demons, Thor killed Surtur and took his crown back to Asgard.
Fire Demons are humanoids with black-colored body that resemble cooled lava or magma. Their eyes and the interior of their mouth possess a perpetual fiery orange glow.
Notable Fire Demons
Video Games Only
- The Fire Demons are loosely based on the Fire Giants of Norse Mythology. In the comics, they were the offspring of Surtur and entirely made of flames.
- In the non canon videogame Thor: God of Thunder, the Fire Demons and the Frost Giants launched an attack on Asgard, but were defeated by the Asgardians.