In fanfiction like this, there could be new characters introduced as well. For instance, there might be an elemental mentor who guides Harry in understanding and controlling his powers. This character could be from an ancient elemental lineage and have a lot of knowledge about the elemental world. And of course, there would likely be antagonists who oppose Harry because of his newfound elemental powers.
Obviously, Harry is the main character. But there are often other characters from the Harry Potter universe as well. Hermione and Ron usually play important roles. They might be the ones who first notice Harry's elemental abilities or help him control and understand them.
A new character like Ella, an elemental mage who just transferred from a far - off magical school where elemental magic was the main focus. She would bring a fresh perspective and new skills to Hogwarts.
Luna Lovegood is another character that features prominently. Her unique perspective could lead her to discover new elemental creatures or magic. She might befriend an air elemental and learn from it how to fly without a broomstick. Neville Longbottom could also have a role, perhaps using his newfound elemental powers (maybe related to plants which are part of the earth element) to defend Hogwarts in a time of crisis.
Well, it might be that Hermione is one of the main characters in this 'harry potter elemental fanfic'. She could be researching about the origin and proper use of elemental magic. Ron could also be there, and maybe he discovers an unexpected elemental ability, like the ability to manipulate earth, which he uses to help in various situations, like creating barriers or finding hidden passages. There could also be a new student from a far - off land who has a pure elemental magic that no one at Hogwarts has seen before.
There could be a mentor figure, perhaps an older and more experienced ice elemental who guides Harry in controlling his powers. Another character might be a friend from a non - elemental background who is trying to understand Harry's new identity.
Well, Harry Potter himself often appears in these fanfictions. He might befriend or be in conflict with an elemental sorcerer. Hermione is also common, perhaps she studies the theory behind elemental sorcery.
I think Draco Malfoy can be quite popular in 'Harry Potter Elemental Bender Fanfiction'. He has that haughty and competitive nature, and seeing him use elemental bending to outdo others or to redeem himself in some way can be an interesting plot. Another one could be Ron Weasley. His loyalty and sometimes clumsy nature can create humorous and engaging stories when combined with elemental bending abilities.
Besides Harry, there could be a character who is a descendant of an ancient elemental magic family. This character might initially be a rival to Harry in mastering the magic but later becomes an ally. Also, Dumbledore could play an important role. He might be secretly guiding Harry in his journey of learning elemental magic, using his own deep knowledge of the wizarding world's secrets.
Sakura might be one of the characters. She has her own set of skills in the medical and combat fields. Meeting Harry could lead to exchanges of knowledge about different forms of healing and combat magic.
Since I don't know the specific 'elemental story', I can't say for sure who the main characters are. But they could be elemental mages or warriors.