Garm, the hound of Gnipahellir, is a monster from Norse mythology.
History
He reemerged on Earth (or Midgrard) during the resurrection of Thrym, king of the frost giants, and served him. Garm was notably guarding the corpses of the villagers the giants had killed and the hound was discovered in an abandoned barn by Hellboy, Abe Sapien, Pernilla Aickman and several dwarves. A fight broke out between the creature and the intruders, and Garm managed to kill Eitri, one of the dwarves.
Despite his great strength, the dwarves and Hellboy, armed with Thor's hammer Mjollnir, managed to kill it in the end.
Appearance