Olaf Ottarson was the son of an Asgardian archer named Ottar but not much is known about him or who Ottar's father was. Olaf's mother is unknown too.
Olaf and Nauma trained Grundi from a young age to be a warrior but not much is known about their relationship with their son.
Olaf is a tall muscular man with brown hair and brown eyes, he is also broad shouldered and has tan skin. He usually dresses in all white and has blue stripes on his armor and clothes. He carries a sword and a wooden lance.