- "Never to get what you desire, not Haldor, not Thor..."
- ―Lorelei to Sif
Haldor was an Asgardian and the former lover of Sif.
- "Would you rather hear about how the man you loved followed me around like a dog? Hear of his touch, his kiss, the look in his eyes when I–"
"You were saying?"
- ―Lorelei and Sif
Haldor was in love with Sif until he was enthralled by Lorelei. On one of her conquests he was killed, leading to a deep-seated hatred between Sif and Lorelei.
- Haldor translates into "Thor's rock" in Old Norse.