I don't know for sure as I haven't read it. But it could be the dragon itself as the main character. There might also be characters like a human who befriends the dragon or other magical beings that the dragon encounters during its journey to fulfill its wish.
Given that it's a fanfic about the dragon's wish, the dragon is surely a central character. There may be other important characters as well. For instance, there could be a young elf who has some special knowledge about the dragon's wish and helps the dragon. There might also be a dark force, maybe a shadowy demon, that is trying to manipulate the dragon's wish for its own evil plans. And don't forget about any potential sidekicks the dragon might have, like a small, talking animal that provides comic relief and also some useful advice from time to time.
In 'the wish of the dragon novel', the main characters could include the dragon of course. There may be a wizard or sorcerer who has some connection to the dragon's wish, either helping or trying to manipulate it. And perhaps a young adventurer who stumbles upon the dragon's situation and gets involved in the quest related to the dragon's wish.
I'm not sure specifically as it depends on the particular fanfiction. It could be the person who makes the wish, likely a human or some other sentient being. And of course, the dragon is bound to be a main character as the whole concept revolves around it.
I don't have enough information to say who the main characters are in 'an unselfish wish fanfic'. It could be a young protagonist who is known for their kind heart and makes the unselfish wish. Or it could be an older, more experienced character who has seen the hardships in the world and decides to make a selfless wish.
Obviously, Harry Potter is one of the main characters. Since it's a 'make a wish' fanfic, his actions based on his wishes would drive the story. Hermione Granger would likely also be a main character as she's always been by Harry's side in the original series, helping him figure things out.
I'm not sure specifically as I haven't read this particular fanfic. It could be about a dragon having a certain wish, perhaps related to power, love, or saving its kind. Fanfics often take the concept of a dragon and add their own unique twists to it.
Since I don't know the exact 'a wish novel', I can't say for sure. But it could be a young protagonist who is on a quest related to wishes.
As I haven't read 'the wish novel', I can't be certain about the main characters. However, it's common in novels for there to be a central character who is on a journey, perhaps a person with a strong will and a big wish. There might also be supporting characters like family members or antagonists who oppose the main character's wish.
The main character is most likely the last dragon itself. But there could also be other important characters like a brave knight who tries to befriend the dragon, or a wizard who has some connection to the dragon's past.
In 'the dragon and the rose fanfic', aside from the dragon and the rose, there could be other characters too. There might be a wizard or a fairy who has some sort of relationship with either the dragon or the rose. For example, a wizard might be trying to control the dragon's actions regarding the rose, or a fairy could be the one who planted the rose in the first place and has a connection to it.
I'm not sure specifically as it depends on the fanfic. But it could have a brave knight who is not afraid of the ice dragon at first sight. He might be on a quest related to the dragon.