Who could be the main antagonist in 'Percy Jackson x Hunters of Artemis fanfiction'?

A great main antagonist could be a powerful Titan who has somehow escaped from Tartarus and is seeking revenge on the gods. He could target the Hunters of Artemis because they are loyal to Artemis, a goddess he has a grudge against, and Percy because of his connection to Poseidon.

It could be an ancient and vengeful Titan who was once imprisoned by the Hunters' predecessors. Now free, it wants to destroy the Hunters to regain its lost power and take revenge on those who once locked it away.

It could be a powerful Titan who has escaped from Tartarus and blames Artemis for something in the past. So he's out to get her, and Percy has to stop him at all costs, even if it means his death.

A powerful Titan who has escaped from Tartarus could be the main antagonist. He might be seeking revenge on Artemis for her role in the previous battles against the Titans. This Titan could have new and terrifying powers that make him a formidable foe for Percy and Artemis.

A powerful Titan who has a grudge against both Percy and the Hunters of Artemis could be a great antagonist. Maybe he wants to use the power of the Hunters for his own evil purposes or destroy Percy to get revenge on the gods.

There could also be a group of rogue demigods who oppose the daughter of Artemis. They might be jealous of her powers or her connection to Artemis. They could try to sabotage her and Percy's quests and cause trouble for them at every turn.

Obviously, Percy Jackson is one of the main characters. He's a demigod with amazing powers related to water. And then there are the Artemis Hunters. Artemis herself is an important figure, though she may not be as directly involved as her Hunters. Thalia, who is part of the Hunters, is also a significant character. She has her own backstory and powers, and her relationship with Percy adds an interesting dynamic.

It could be a new demigod who has turned to the dark side. Jealous of Percy's popularity and Artemis' power, this demigod could try to create chaos in the high school and turn students against them.

The Olympian council itself could be the antagonist if they are the ones forcing the marriage for their own political gain. They might not care about Artemis' wishes or Percy's attempts to stop it, and they use their power and influence to push the marriage forward.

The Hunters of Artemis play a really cool role in Percy Jackson fanfiction. They are a group of female hunters who follow the goddess Artemis. In fanfics, they often add an element of mystery and adventure. For example, they might interact with Percy in unique ways, like teaming up with him to fight some powerful monsters. Their presence can change the dynamics of the story completely.