L
- Loki - Thor's archenemy and stepbrother. The son of Laufey, king of the frost giants of Jotunheim, one of the "Nine Worlds" of the Asgardian cosmology. He is a master of spellcasting and trickery.
- Lorelei - The sister of Amora the Enchantress, and possesses some skills in Asgardian magic and in seduction.
Read more about this topic: List Of Thor Enemies