Naruto's family members would be important characters. His father Minato might appear in flashbacks to give some clues about the Whirlpool inheritance. Hinata could also be part of the story, perhaps as Naruto's support system. And don't forget about the villains. There could be antagonists who want to use Naruto's new status as the heir to the Whirlpool for their own evil purposes, like Orochimaru or some new, unknown enemy.
Well, it could be about Naruto discovering his connection to the Whirlpool clan and inheriting some special power or legacy from it. Maybe he has to face challenges related to this newfound heritage.
The main character is Naruto, no doubt. However, in a 'naruto of the whirlpool fanfiction', there could be antagonists who are also key characters. These could be villains who are after the power of the Uzumaki clan. There might also be side characters like a sensei from the Whirlpool Village who trains Naruto in some unique Uzumaki - related techniques. These characters all contribute to the overall narrative of the fanfiction, whether by helping or hindering Naruto's progress.
Well, obviously, the 'Naruto prince of whirlpool' is one of the main characters. There might also be his friends and allies from the original Naruto series, like Sasuke or Sakura, who could play important roles in his journey related to his Whirlpool identity.
Obviously Naruto would be one of the main characters. There might also be characters from the Whirlpool like Karin, as she has connections to that place.
It could be a long - lost relative of Hashirama. Maybe a distant cousin or a descendant from a hidden branch of the Senju family. This character would carry the bloodline of Hashirama and thus have the potential to inherit his powers.
Hinata could be one of the main characters. She might support Naruto in his efforts to rebuild the Whirlpool Village, both morally and with her Byakugan skills which could be useful for scouting and security.
One possible main character could be a young ninja from the Whirlpool village who has a special ability related to water manipulation. Another could be a Sand village ninja known for their skill in sand - based jutsu.
Naruto is probably the central figure. And perhaps there will be some supporting characters like Hinata or Sasuke. Also, there could be some long - lost Uzumaki relatives who play important roles as they are likely to be associated with the 'whirlpool' theme in the fanfic.
Neville Longbottom is another possible heir. He has a strong connection to Gryffindor through his family's long - standing association with the house. His growth from a shy and clumsy boy to a brave and powerful wizard could be part of a story where he is the heir of the founders. His ability to stand up to the Death Eaters in the final battle shows his hidden strength, which could be related to the founders' magic.
Well, Harry Potter himself could be a possible heir. He already has so many Gryffindor - like qualities. His courage and loyalty make him a strong candidate.