Alex Fierro is a character in the Magnus Chase and The Gods of Asgard series. Being genderfluid, Alex alternates between the pronouns he and she. Mostly female, but has "very male days".
She and Magnus Chase are friends so far. She also has friendships with Hearthstone and Blitzen.
- Alex is the third LGBT demigod (after Nico di Angelo and Will Solace) to be introduced in one of Riordan's series, as well as the first confirmed Norse LGBT demigod.