I don't know for sure as I haven't read it. But it could include Merlin, Arthur, and perhaps a new character who is the 'heart thief'.
In 'the heart thief merlin fanfiction', the main characters are hard to determine without reading it. However, we can assume Merlin is a central figure. The 'heart thief' is obviously a main character in this fanfiction. There could be other characters like the knights of Camelot. They might be the ones whose hearts are being stolen or they could be trying to stop the 'heart thief'. Also, characters like Uther Pendragon (if the story is set in his reign) could play a role in how the Camelotians respond to the heart - stealing situation.
Given that it's a Merlin fanfiction, Merlin and Arthur are likely to be involved in some way. As for the 'heart thief', it could be an original character created for this story. Maybe it's a sorcerer or a mysterious figure from a far - off land who comes to Camelot and starts causing trouble by stealing hearts. There might also be other characters from the original Merlin series like Gwen or Morgana who interact with this new 'heart thief' character.
Well, 'the heart thief merlin fanfiction' might center around a plot where someone in the Merlin world has the ability to steal hearts. It could be a magical being or a person with a special charm. This could lead to all sorts of chaos and drama. For example, if they steal the heart of a key character, it might change the course of events in the story, like affecting alliances or causing internal conflicts within Camelot.
Obviously, Merlin is one of the main characters. He is the powerful wizard with a kind heart, always trying to protect Camelot.
Obviously, Merlin is the main character. As a prince, he has a central role in the story. Arthur is also often a major character. Their relationship changes and develops in different ways. For example, Arthur may have to deal with Merlin being his equal in status now. Gwen might also be an important character, perhaps as Merlin's ally or love interest.
In 'Balinor Merlin' fanfiction, the two central characters are Merlin, who is constantly trying to protect Camelot and Arthur, and Balinor. Balinor is important as he is not only a dragonlord but also has a connection to Merlin. He passes on his knowledge and power to Merlin, which makes their relationship a key part of the fanfiction. Their interactions, the things they learn from each other, are what drive the stories in most of these fanfictions.
Well, obviously Merlin and the prince are the main characters. Merlin is often depicted as a powerful wizard with a kind heart, and the prince can vary in personality depending on how the author writes him. Sometimes he's brave and headstrong, other times more cautious and diplomatic.
The main characters are obviously Lamia and Merlin. Lamia is often depicted as a unique and mysterious character with her own set of powers and abilities. She might have a connection to the more shadowy or less - known aspects of magic.
Well, of course, the thief is likely to be one of the main characters. There might also be a detective or a law enforcer who is on the thief's trail, creating a cat - and - mouse dynamic.
There might also be Arthur. In the original Merlin series, Arthur and Merlin have a very close relationship, so it's likely he'll be in this fanfiction too. His role as the future king and his relationship with Merlin are often key elements in such stories.
Hermione and Ron are likely to be main characters too. They are Harry's closest friends in the original series, and in this fanfiction, they would probably play important roles in helping Harry understand and deal with his new identity as Merlin's heir. They might assist him in researching about Merlin, or they could be by his side when he faces new challenges because of this heritage.
Merlin is often the central figure in these fanfictions as his magic can be used to drive the plot forward. Sting could be the action - oriented character, always ready for a fight. Serket might be the more enigmatic one, with knowledge or powers that are not immediately obvious. Together, they create a dynamic trio in the fanfiction world.