Who could be an interesting new character in a Harry Potter fourth year fanfiction?

A magical creature that has the ability to speak and befriend Harry would be a great addition. For instance, a phoenix - like creature that is not as well - known as Fawkes. It could offer Harry advice and help him in the Triwizard Tournament, and their friendship would be a heartwarming aspect of the story.

A new character could be a foreign exchange student from a far - off wizarding school. This student could bring with them unique magical abilities that are not commonly seen at Hogwarts. For instance, they might be able to control the elements in a way that is different from any known Hogwarts magic. They could also have a different perspective on the fight against Voldemort, which could influence Harry and his friends.

An old ex - Auror who now lives near Hogwarts. He could have a past connection to Voldemort and some knowledge about the Dark Arts used in the Triwizard Tournament. He becomes an unofficial mentor to Harry, teaching him some unique spells and strategies that are not part of the regular Hogwarts curriculum. This character could bring a new perspective and a bit of wisdom to the story.

A great antagonist could be a corrupted teacher. For instance, a teacher who is secretly working for Voldemort but has been hiding in plain sight at Hogwarts for years. They could manipulate the Triwizard Tournament to their own ends, causing all sorts of trouble for Harry and his friends.

A young Auror who is assigned to help guard Azkaban but has a secret sympathy for the prisoners. This character could add a new dynamic to the story as they struggle between their duty and their conscience.

A young dragon tamer from a far - off land could be an interesting addition. This character could have a deep understanding of dragons and offer Harry some advice on how to approach the task. Maybe they have a special bond with one of the dragons in the task and can communicate with it, which could add an unexpected twist to the story.

A wizard from a far - off land who comes to Hogwarts as an exchange student. He could have a whole new set of magical abilities that are different from what the Hogwarts students are used to, like being able to control the weather in a very specific way. This would add an interesting dynamic to the story as Harry and his friends learn from him.

One interesting plotline could be a deeper exploration of the relationship between Harry and Cedric Diggory before the Triwizard Tournament. Maybe they become unexpected friends and help each other with the tasks in ways not shown in the original book. Another could be a different take on how the other schools' students interact with Hogwarts students. For example, a Durmstrang student might have a secret mission related to the tournament that involves Harry.

How about a muggle - born witch who has been hiding her magic for a long time because she was scared of the wizarding world. But during year 4, she finally decides to embrace her magic and attends Hogwarts. She has a lot of fresh perspectives on things like the Triwizard Tournament, as she has only recently learned about the wizarding world's traditions.

How about a rogue ninja who has his own motives during the Fourth Shinobi World War? He might not be on either side of the main conflict, but he has a personal vendetta against one of the powerful shinobi leaders. He could be constantly interfering in the battles, causing unexpected twists and turns.