Ron Weasley could be another main character. His friendship with Harry and Hermione is a big part of the original story, and in this fanfiction, he might play a crucial role in facing the challenges that come with the new elements introduced in the 'Slutty Hallows' concept. Maybe he has to use his unique skills or knowledge to help his friends deal with the strange things happening in the story.
Hermione Granger might also be a main character. In the original series, she is an important part of Harry's journey, and in this fanfiction, she could be involved in new storylines, like solving some sort of mystery related to the 'Slutty Hallows' concept.
One interesting idea could be new magical creatures or spells that are introduced in the fanfiction. It might expand the magical world in unique ways.
In addition to Harry, Hermione, and Ron, there could be other characters in this fanfiction. Dumbledore might play a role, even if it's just through his past knowledge or guidance that he left behind. Voldemort could also be a part of the story in some way. Maybe his spirit or his past actions are still influencing the wizarding world and Harry's need to unite the hallows is related to finally putting an end to Voldemort's dark legacy completely.
Hermione would probably still be a main character. She'd be by Harry's side, trying to help him understand and control the power of the Hallows. She might be researching ancient texts to find out more about any potential side - effects or proper uses of the absorbed Hallows.
Obviously, Harry Potter is one of the main characters as the title implies he is the one who keeps the Deathly Hallows. Hermione Granger and Ron Weasley are likely to be important as well, as they are Harry's closest friends and would probably be involved in whatever adventures or challenges come with Harry having the Hallows.
Harry Potter is of course one of the main characters. Since the Hallows are such an important part of the story, he would be central to any exploration of them. Hermione Granger is also likely to be a main focus as she is always involved in researching and understanding magic. Ron Weasley too, as Harry's best friend, would be there to support and be part of the adventure.
In a 'Harry Potter after Deathly Hallows' fanfic, the main characters could include not only the well - known ones but also some minor characters from the original series who now get a chance to shine. Seamus Finnigan, for instance. He could be involved in some sort of magical research that has an impact on the wizarding world. Also, the centaurs could be main characters in a way that shows their relationship with the wizarding community after the war. They could be allies or have some sort of conflict. And of course, Ginny Weasley as a strong and independent witch could be a main character, perhaps leading a Quidditch team or writing for the Daily Prophet about the post - war changes.
One interesting original character could be a young wizard who is secretly a descendant of one of the founders of Hogwarts but has been living in the Muggle world. He enters the story during the events of Deathly Hallows and his unique perspective and powers, which are a blend of Muggle ingenuity and ancient magic, make him really engaging.
Harry Potter himself is still quite popular. People like to see his life after the big battle, how he copes with his new - found fame in a more peaceful world. Hermione Granger is also a favorite. Fans might write about her furthering her studies and making new contributions to the wizarding world's knowledge. Another popular character is Draco Malfoy. His potential for redemption and his complex character make him an interesting subject for fanfiction writers.
Albus Severus Potter is quite popular. As Harry's son, he has a lot of potential for new stories. He's in a unique position, being named after two great wizards, and fans like to explore his journey at Hogwarts and how he deals with the legacy of his father.
Their children could also be important characters. If the fanfiction delves into their family life, the kids would play significant roles. For example, their eldest son might show signs of having inherited Harry's courage and Ginny's feistiness, and they would be part of the story as Harry and Ginny navigate parenting.