I'm not sure specifically as it depends on the fanfic. But it could be characters who are masters of the mind arts, like a wise old mentor who teaches others about it. Or perhaps a young and talented individual who is just starting to explore their mind arts capabilities.
I'm not sure specifically as it depends on the particular fanfiction. But it could be characters with extraordinary mental powers.
In Harry Potter fanfic, characters can be deeply affected by the Mind Arts. For instance, if a character is subjected to Legilimency against their will, it could lead to a loss of privacy and a sense of violation. On the other hand, if a character masters Occlumency, it can give them a sense of power and control over their own mind.
Since I haven't read the fanfic, I can't tell who the main characters are. They could be original characters created by the author with minds that are unique in some way.
The 'the mind arts fanfic' might be a story that takes the concept of mind arts and weaves it into a unique narrative. It could be a story of a young protagonist who discovers their latent mind arts abilities and has to navigate a world that either fears or desires such powers. There could be a whole system of mind arts in this fanfic, with different levels of proficiency and different techniques that the characters learn and use in their adventures.
In Harry Potter fanfic regarding the Mind Arts, the creativity of the writers shines. Some may focus on the ethical implications of using such powerful mental magic. It could show the struggle of a character who has to constantly protect their mind from being invaded or has to master the art of invading others' minds for a noble cause. It can also be a way to explore the psychological aspects of the characters more deeply.
There might be his friends too. They could be trying to help Percy get his mind back. So characters like Annabeth might be important as she would likely be deeply concerned about Percy's state and try to figure out what's wrong with him.
It could also be that an existing character from the Harry Potter series discovers or develops this new power. Maybe Hermione, with her brilliant mind, somehow unlocks this ability and has to deal with the consequences. She would have to balance her new power with her existing knowledge and friendships.
Since I haven't read it, I can't say for sure. But it could be the main trio - Harry, Hermione, and Ron. They are often central to most Harry Potter fanfics as they are the main characters in the original series. Their minds are constantly evolving throughout the books, so it would make sense if they were the main characters in this fanfic too, especially if the focus is on a 'well - groomed mind'.
Well, Jim is the central figure as his mind is the main setting. There could also be a mentor - like character. This character might help Jim understand what is happening with the bone in his mind. They could have knowledge about the bone's origin or purpose and guide Jim through the strange situation he's in. Another possible character could be Jim's friend who notices the changes in Jim after the bone enters his mind and tries to help him.
Well, Humphrey is the main focus here as it's in the title. As for the alpha and omega, they are likely important characters as well. The alpha might be a dominant figure, perhaps with the power to control Humphrey's mind. The omega could be in a more submissive or related role, maybe being affected by the mind control situation too. There could also be other characters that are friends or foes of Humphrey, who play a role in the events related to the mind control.