Well, Harry Potter is obviously a main character. In this type of fanfiction, he is often the one with the godlike abilities. Then there could be Viktor Krum, who might play a different role than in the original books. Maybe he becomes a rival or an ally to Harry in his journey with his new powers at Durmstrang.
Harry Potter is the central figure, but there could also be original characters created specifically for the fanfiction. For example, a mysterious old wizard who has been waiting for someone with Harry's godlike powers to arrive at Durmstrang. This wizard could act as a guide for Harry, teaching him about the deeper, more dangerous magics that are part of Durmstrang's heritage and how to use his powers for good.
One interesting 'godlike Durmstrang Harry Potter fanfiction' could be where Harry Potter transfers to Durmstrang and discovers he has some sort of god - like powers that are enhanced by the Durmstrang curriculum. Maybe he can control the elements in a way that surprises everyone at the school.
It's likely that some of the main characters would be students or professors from Durmstrang. Since it's 'godlike', they could be characters who possess extraordinary powers. Maybe there's a young, talented student who is the center of some sort of prophecy or mission. And of course, there could be a powerful professor who guides or opposes this student. It all depends on how the author has developed the story.
There could be a dark entity that lurks within the Durmstrang castle itself. It might have been awakened by Harry's arrival or has some connection to the school's past. This entity could manipulate students and teachers alike to create chaos and oppose Harry.
Often, Durmstrang is depicted as a more mysterious and perhaps a bit darker school. Its students are shown to be more proficient in the Dark Arts compared to Hogwarts students.
In some fanfictions, the Durmstrang champion could have a backstory that involves a conflict between the values of Durmstrang and those of Hogwarts. They might struggle with the more lenient rules at Hogwarts compared to the strict and often dark - arts - friendly environment at Durmstrang. This internal conflict could add depth to their character as they compete in the tournament.
Obviously, Harry Potter is the main character given the title. His character is likely to be the central focus with his 'godlike' abilities and his independent stance.
In this type of fanfiction, new characters might be introduced as well. There could be other powerful wizards or witches who are either rivals or allies to Harry. Some might be from different magical regions, bringing in new magical cultures and powers. For instance, a powerful wizard from a far - off land who challenges Harry's 'godlike' status. And of course, there are often the antagonists, who are threatened by Harry's power and try to undermine him.
In these fanfictions, the main character with godlike powers is central. Alongside him, the harem often consists of strong - willed female characters from the original series. For instance, Luna Lovegood could be in the harem, with her unique perspective on magic. And there may be a character who is a half - blood or a pure - blood witch from a minor wizarding family, added to bring in new story elements related to the harem and the overall wizarding world.
There could be some original characters created by the fanfiction authors. These could be Harry's new classmates or friends at Durmstrang. They might have their own unique magical skills and personalities, and through their interactions with Harry, they can help develop the story further. For example, a new friend could introduce Harry to a secret part of the Durmstrang grounds or a special magical technique that's unique to the school.
Obviously, Harry is the main character. But there could also be his friends like Hermione and Ron. They might play different roles, for example, Hermione could be the one helping Harry understand the more complex aspects of his 'gamer' powers.