Well, there could also be other characters like the girl's family members. They might initially be scared of the Night Fury but later come to accept it because of the girl's influence. And perhaps there are some antagonists too, like hunters or people who fear the Night Fury and want to harm it.
Obviously, the main characters are the little girl and the Night Fury. The little girl is likely to be portrayed as brave, curious, and kind - qualities that draw her to the misunderstood Night Fury.
One interesting plot could be the little girl discovers a wounded Night Fury and nurses it back to health. They form an unbreakable bond and together face the challenges of a world that fears the Night Fury.
Obviously, the little girl is one of the main characters. And there might be other characters like the people she meets in the continent, perhaps a wise old man or a brave young boy who helps her on her journey.
Obviously, Hiccup and Toothless are the main ones. Astrid could also be in it, maybe she tries to figure out what happened to Hiccup and how to turn him back. There could also be other Vikings who are either scared or intrigued by the baby Night Fury that used to be Hiccup.
One interesting 'little night fury fanfiction' could be about a little night fury's adventure in a magical forest. It discovers new friends and overcomes various challenges like finding its way through enchanted mazes.
Obviously, the little girl is one of the main characters. And a friendly dinosaur, like a small Stegosaurus, could be another main character. They are the focus of the story as they interact with each other.
Obviously, the Joker and his little girl are the main characters. The Joker is a well - known and complex villain. His presence would bring his signature brand of chaos and unpredictability. And the little girl, she could be a completely new character with her own set of motives and emotions.
Obviously, the little girl would be one of the main characters. And the members of the Akatsuki, such as Itachi, Kisame, and Pain, would also be main characters as they are the central group in the story.
Since it's about Uzumaki Mito, she is likely one of the main characters. There might also be other characters from the Naruto universe like Hashirama Senju, as he was related to Mito. Maybe some of the early villagers of Konoha could be in it too.
Since it's a fanfiction, it could have the main characters from the original series like Harry, Hermione, and Ron. They might be dealing with situations that involve cold fury in ways that J.K. Rowling didn't explore in the original books.
A power - hungry Viking who sees Hiccup's transformation as a threat to his own authority could be the main antagonist. He might try to capture Hiccup in his Night Fury form and use him for his own evil purposes, like trying to create an army of transformed creatures.