The Ragnar are ferocious beasts which attack nearly everything they come in contact with. They have served as one of the larger threats to the Vilutrmite empire due to their ferocity combined with their enormous strength.
Powers & Abilities
The Ragnar are even stronger than Viltrumites, though this may be due in part to their feral behavior as they attack anything they come in proximity with. Their claws have been shown to be able to pierce Viltrumite flesh and they can survive in the vacuum of space without oxygen (though it was not specified as to how long this can be maintained). They seem to be able to survive in the harshest of environments and numerous Ragnar were even frozen but once thawed, they returned almost immediately to normal behavior. They are not invincible but serve as one of the strongest species in the universe.
The Ragnars first appear in Invincible #35 in the books written by Nolan Grayson, describing the events prior to his arrival on Earth.