There could be some ghost characters involved too. For instance, Vlad Masters might show up in the fanfiction. He could be either jealous of Danny's new ability with the claws or try to use it to his own advantage. Another character could be Skulker. He might see Danny's claws as a new trophy to hunt for, which would lead to some exciting chase scenes in the fanfiction.
Clockwork could also be a main character in this type of fanfiction. He might be the one who has some knowledge about the origin of Danny's claws. He could guide Danny on how to use them properly or warn him about the potential consequences of misusing them. Danny's family, such as his parents, might also play a role. They could either be oblivious to Danny's claws or suspect something strange is going on with their son.
Tucker Foley and Sam Manson are also often main characters. They are Danny's best friends in both his human and ghost - fighting life, so they play important roles in many fanfictions. They might be helping Danny deal with the challenges of his dual identity or getting involved in his battles against ghosts.
Danny himself can be a main character in such fanfiction. His relationship with his mother, Maddie, can be explored from the perspective of maternal instincts. For example, Maddie's instincts kicking in when Danny is in a particularly dangerous situation with his ghostly foes.
In addition to Danny and his immediate circle, there could be other characters from the Danny Phantom universe. For example, Valerie Gray. If she discovers Danny's identity, she might have a complex reaction. On one hand, she's been hunting ghosts, but on the other, Danny has also been protecting the town. So, her role in the fanfiction could be very interesting, especially in terms of how she interacts with Danny after the identity reveal.
The main character is Danny Phantom himself. He's at the center of the story as he discovers and wields the secret weapons. Then there's Vlad Masters. He could be a key character in some fanfictions as he might be after the same secret weapons as Danny, either to use them for his own gain or to stop Danny from having them. Danny's parents also play a role, as their ghost - hunting knowledge and equipment could be related to the secret weapons in some way.
In some fanfictions, Danny's family members can be involved as well. His sister Jazz might be there to support him emotionally or to try and stop him from making a dangerous sacrifice. His parents, who are ghost hunters, could also be part of the story. Their relationship with Danny and their views on his actions can add depth to the fanfiction.
Well, in some fanfictions, Danny's claws might be a key factor in him exploring a hidden part of the Ghost Zone. He could use them to climb or dig through strange substances there. It could also lead to him finding new allies or enemies. For example, there might be a race of ghosts that are both intrigued and threatened by his clawed form.
Obviously, Danny Phantom himself is the central character. His two identities, Danny Fenton the human and Danny Phantom the ghost, are at the core of the identity crisis. His friends Sam and Tucker are also often involved. They are usually the ones who are either helping Danny through his crisis or are unknowingly part of the problem, like when they start to suspect something strange about Danny.
In this type of fanfiction, Danny is the main focus as he endures the sensory overload. Sam and Tucker are key characters as they are Danny's support system. But there could also be appearances from some of the ghost villains like Vlad Masters. He might either be trying to use Danny's overload to his advantage or might be an unexpected ally in helping Danny understand and control his condition. And of course, Danny's family members, especially Jazz, could play important roles in the story.
Well, obviously Danny Phantom himself is usually a main character. He's the half - ghost hero, so a lot of the stories revolve around him. His friends like Sam and Tucker are also often involved. Sam is the goth girl who is very loyal to Danny and Tucker is the tech - savvy friend. Danny's sister Jazz might also be in the story, especially if it's a more family - centered stuck - together scenario.
Obviously, Danny is the main character. His friends like Sam and Tucker are also often involved. Sam might be there to offer her unique brand of support and advice, being the edgy and understanding friend she is. Tucker could provide some comic relief while also being a true friend in Danny's time of heartbreak.