Aside from the goblins, there might be other magical creatures or characters that get involved because of Harry's alliance with the goblins. For example, some house - elves who have information about the enemy and decide to help out. But the goblins would still be the central characters besides Harry, with their own culture, traditions, and magic that would play a big part in the fanfic.
There could be a young and brave goblin warrior who is eager to prove himself in the fight alongside Harry. And perhaps there's a goblin shaman or mage who has special powers and uses them to help in the battles. These goblin characters would each contribute in different ways to the story.
In this fanfic, perhaps the goblins have some sort of vendetta against a particular group that is also a threat to Harry. So they join forces. Harry could learn a great deal from the goblins' different approach to magic. And together they could stage some epic battles, using the goblins' underground tunnels as strategic points for their fight.
Ron might also be a main character. He could be there for moral support to Harry. And his sense of humor might help ease the tension between Harry and the goblins at times. Also, he might accidentally stumble upon a clue that is crucial for helping the goblins, like finding a secret passage in a goblin - related place.
Hermione would probably be one of the main characters. As Harry's friend, she could be a teacher at Hogwarts, perhaps the new Transfiguration teacher. She would offer her intelligence and knowledge to support Harry in running the school.
Obviously, Harry Potter himself would be a main character. Then, there would probably be some important goblin characters who raise him. For example, a wise old goblin who acts as his mentor, teaching him everything from magic to the ways of the goblin society.
Obviously, Harry would be one of the main characters as it's in the title. He's the one fighting the Daleks.
Obviously, Harry Potter himself. And then there would be the goblins. Maybe Griphook, as he was one of the more well - known goblins in the original series. He could be one of the main trainers of Harry.
Well, in a lot of Harry is a Marine fanfiction, there are comrades - in - arms. These could be characters with diverse backgrounds and personalities. For instance, there could be a Marine who has a special skill, like being an expert marksman or a medic. And then there could be a character who is a bit of a troublemaker in the unit but still has a good heart deep down. These characters interact with Harry and shape his experiences in the Marines.
Typical characters include the wise old mentor. This person has a lot of experience in the business world and gives Harry valuable advice. There might also be a nosy neighbor or acquaintance who is always trying to get in on Harry's business or find out his secrets. Another character could be a charity worker. Since Harry is a billionaire, his interaction with those involved in philanthropy is common, and this character can add a different dimension to the story, like trying to convince Harry to donate more to certain causes.
Often, Hermione and Ron are still main characters. Hermione could be the one providing all the research and knowledge about goblins and their ways. Ron would be there for moral support and also to use his family's knowledge of the wizarding world to help Harry.
Another character could be a cologne - making elf. In the wizarding world, there could be elves who specialize in making colognes. This elf could have a special bond with Harry. It could be that the elf was tasked with making a special cologne for Harry's protection from the moment he was born. And as Harry grows, the elf helps him understand the true power of the colognes he has been surrounded with all his life.