There could be a strict drill sergeant named Sergeant Thompson. He is tough on Harry at first but later comes to respect him. Another character could be Harry's roommate, Jack. Jack is a typical military school student who helps Harry understand the ropes.
In this fanfiction, apart from Harry, there could be a group of friends. For instance, Tom, a boy who is really good at physical training and often challenges Harry to improve himself. Then there's Sarah, a smart and strategic thinker who helps Harry with his academic work at military school. There might also be an older student, Captain James, who serves as a mentor to Harry. He shows Harry how to handle the pressure and expectations at military school and shares his own experiences to inspire Harry.
One main character could be the school principal, Colonel Blackwood. He is an old - school military man who has high expectations for all the students. Also, there might be a female cadet, Lily. She is very competitive and at first sees Harry as a threat but later they become friends. And then there's the mess hall cook, Mr. Gomez. He gives Harry some fatherly advice from time to time.
There could be a French wizard named Pierre who becomes Harry's friend and helps him adjust to the new school.
Ron could also be important. He might be torn between his loyalty to Hogwarts and his friendship with Harry. Eventually, he could choose to leave Hogwarts to be with Harry, bringing his Weasley family charm and his own brand of magic to the group. The Weasley twins might also get involved, providing some much - needed humor and their unique magical inventions.
Perhaps some students who are jealous of Harry's fame could be antagonists. They might try to undermine him during training exercises.
Besides Harry, Ginny could be a main character. She might be interested in the sports aspect of the Egyptian school, like their version of Quidditch. And there could be a local Egyptian student who becomes friends with Harry. This student could have a deep connection to the history of Egypt and help Harry understand the significance of certain magical sites in the country. They could explore ancient temples together and face various challenges along the way.
Viktor Krum could be a major character. Since he is from Durmstrang, he might play a role like a mentor or a rival to Harry. Another character could be the headmaster of Durmstrang. He would be important as he sets the rules and tone for the school.
One possible plot could be Harry struggling to adapt to the strict discipline of military school at first. He might have conflicts with the drill sergeants who are tough on him. But as time goes by, he discovers his own inner strength and leadership skills, and eventually earns the respect of his peers and instructors.
Hermione could be one. She might use her vast knowledge of magic to help Harry figure out how to hatch the egg. Another could be Hagrid. He has a lot of experience with magical creatures, so he could offer advice on taking care of the egg and the soon - to - be - hatched creature.
Hermione and Ron would also be important characters. Hermione might be initially skeptical of Harry's newfound obsession with the Marauders. Ron, on the other hand, might be more easily swayed and join Harry in his attempts to be more like the Marauders.
A vampire hunter could be a key character. They might initially see Harry as a target too because of his association with the vampire. This would create a lot of tension as Harry and his mate have to either convince the hunter that they are not a threat or fight against them. And don't forget about Dumbledore (assuming this is in the Harry Potter universe). His reaction to Harry's new situation would be very interesting to explore.
There could be a group of Japanese students who are initially skeptical of Harry but later become his allies. For example, a shy girl who is really good at Japanese magic but lacks confidence. And a tough - looking boy who is actually very kind-hearted and they all form a sort of magical study group together with Harry. There might also be a mischievous Japanese magical creature that befriends Harry and causes some chaos in the school.