Who could be the main antagonist in 'harry snaps at the goblet of fire fanfiction'?

Maybe it's a new character, a powerful dark wizard who has a vendetta against Dumbledore. By forcing Harry into the tournament, they hope to draw Dumbledore out and make him vulnerable. This new antagonist could have some dark magic at their disposal that allows them to control the Goblet's selection process.

It could be Voldemort. He might be using the Goblet's summons to get Harry into a vulnerable position during the Triwizard Tournament so that he can finally kill him.

The Goblet of Fire itself could potentially be the main antagonist in a sense. If it has a sentient or corrupted nature in the fanfic, it could be transporting Harry around against his will and causing chaos for its own mysterious reasons.

Another possibility is that the main antagonist could be the wizarding society as a whole. If Harry has been constantly marginalized or misunderstood by the general wizarding population, he could snap and see them as the enemy. Their narrow - minded views and prejudices, like against half - bloods or Muggle - borns, could be what pushes Harry over the edge. He may then try to change or even rebel against the entire wizarding society.

Maybe it's a character who was previously thought to be good but has been corrupted. They use the Goblet's summoning of Harry to create chaos in the wizarding world. For example, a teacher at Hogwarts who has secretly turned to the dark side. They could manipulate the events surrounding Harry's summoning to turn the students and faculty against each other, all while trying to achieve their own sinister goals.

One possible interesting story could be Harry's internal struggle that leads to him snapping at the Goblet of Fire. Maybe he's frustrated with the way the Triwizard Tournament is being handled or he suspects some foul play related to the Goblet's selection. It could also show a different side of Harry's character, like his growing impatience with the magical world's bureaucracy.

It could be a powerful dark wizard who has infiltrated the Ministry of Magic and manipulated the Goblet of Fire. They might want Harry out of the way to further their own dark plans.

There is also a possibility that the main antagonist is the Goblet itself if it has been corrupted by some ancient dark magic. It could be summoning Harry not for a normal Tournament but to sacrifice him or use his power for some evil purpose, making the Goblet the force that Harry has to fight against.

It could be Neji. Even though they are family, Neji has been quite tough on Hinata in the past. His overbearing nature and the way he has sometimes looked down on Hinata could be the final straw that makes her snap.

One unique fanfiction is about a character from a different wizarding school who somehow gets involved with the Goblet of Fire at Hogwarts. This character has their own set of magical abilities and traditions that clash and blend with those of Hogwarts, creating a really engaging story full of cultural exchanges and magical mishaps.