Personal Info:
Real Name: Hagen
Also Known As: Hagen of Trondgarrd
Place Of Birth: Jotunheim, Asgard dimension
First Appearance: Balder the Brave Vol.1 #2 (1986) Modern Age Villain
Known Associates: Utgard-Loki
Group Affiliation: Frost Giants of Jotunheim
Base Of Operations: Jotunheim, Asgard dimension
Grudges: Balder
Creators: Walter Simonson and Sal Buscema
Enhanced Abilities: Hagen has vast super human strength, endurance and durability. His flesh and bone are far denser than similar human tissue, contributing to his superhuman strength and weight, which are also the result of his great size.
Longevity: Hagen is extremely long-lived (although not immortal).
Invulnerability: Hagen is resistant to conventional injury.
Weapons: Hagen carries a long sword.
Hagen of Trondgarrd is a member of the Giants of Jotunheim. The Giants of Jotunheim, also known as the Etins, are enormous superhuman beings, most of whom dwell in the other dimensional realm of Jotunheim, one of the Nine Worlds of Asgardian cosmology. They are the traditional enemies of the gods of Asgard, with whom they have gone to war numerous times over the millennia. Jotunheim is a flat ring-shaped realm with high mountains along its inner edge. It is apparently on its own separate dimensional plane, distinct from Asgard's or Earth's. However, there are inter-dimensional portals between the mountains of Jotunheim and those of Asgard, permitting easy passage from one realm to the other.
Hagen at Marvel Database