In addition to the well - known Naruto characters, some fanfictions might introduce original characters. These original characters could be friends or foes of Naruto and Kyo. They can add new dynamics to the story, such as a new villain who is after the power that Naruto and Kyo are said to possess together.
The main characters are often Naruto, as he is the focus of the mecha concept. Shikamaru could also be a main character in this type of fanfiction. He would be the strategist, trying to figure out how to best utilize the mecha Naruto in battles. Additionally, Orochimaru might be a character in some cases. He could be interested in stealing the technology of the mecha for his own evil purposes or trying to manipulate Naruto through it.
Naruto is obviously one of the main characters, as the title implies his connection to the fanfiction. There might also be Sasuke. Since Sasuke is often involved in Naruto's story, in this fanfiction, he could be either an ally or a rival in the context of the adamantium - related plot.
Well, Naruto is of course one of the main characters. He is often at the center of the story as he takes on the role of the king - emperor. Sasuke can also be a main character, either as Naruto's ally or sometimes as a rival who challenges Naruto's new - found authority. Sakura might also play an important role, perhaps as a healer in Naruto's new regime or as a diplomat.
Sometimes, other characters from the Naruto universe might also be involved. For instance, Kakashi could be in the story as Naruto's former teacher and someone who has a connection to Ibiki as well. Or Shikamaru, who is known for his intelligence, could be added to the mix, creating more complex interactions among the characters.
Obviously Naruto is one of the main characters. And Alduin, of course. There might also be characters like Sasuke in Naruto's world who could get involved in the story. In Alduin's world, there could be dragon followers or powerful mages who interact with Naruto and Alduin.
In most Jigsaw Naruto fanfiction, Naruto is the main focus as he is the hero we all know from the original series. Jigsaw is the antagonist, creating all sorts of twisted situations for Naruto to deal with. Sometimes, Kakashi might also be involved. He could be either helping Naruto figure out Jigsaw's plans or be another victim of Jigsaw's traps. Also, characters like Hinata might be included, perhaps being held hostage by Jigsaw to make Naruto face difficult choices.
Typically, Naruto is a staple main character as he is the face of the Naruto series. Leon then is the new addition in this fanfiction scenario. They are often accompanied by their friends. For Naruto, that would be his comrades from the Hidden Leaf Village such as Shikamaru, who might provide strategic advice. And for Leon, if he has any allies from his own origin story, they could also be part of the story, but that depends on how the author of the fanfiction writes it.
Naruto is the central figure in most 'demon naruto fanfiction'. In addition to him, there could be an ancient demon lord who serves as the antagonist. There are also times when the other members of Team 7, like Sakura and Kakashi, are involved. Sakura might be worried about Naruto's change, while Kakashi tries to guide him. And sometimes, there are original characters created specifically for the fanfiction, such as a demon hunter who targets Naruto at first but then realizes he's not entirely evil.
Naruto is almost always a main character in Naruto beach fanfiction. Since the story is based on the Naruto universe, he is the central figure. His friends like Sasuke, Sakura, and Kakashi also often appear. Sasuke might be involved in some sort of rivalry or team - up with Naruto on the beach. Sakura could be there to provide medical support or get involved in combat situations.
Obviously Naruto is one of the main characters. And Kami, of course. Sometimes other characters like Sasuke might also be important as Naruto's relationship with him could be affected by Naruto's interactions with Kami.