Obviously Naruto is a main character as it's a Naruto fanfiction. His character with the godlike mokuton powers would be central to the story. Sasuke might also be involved. Their relationship could be explored further, especially with Naruto's new - found power. Sasuke might be in awe, jealous, or try to compete with Naruto in different ways.
Another character could be Kakashi. He might act as a mentor or guide to Naruto in understanding and controlling his godlike mokuton powers. He could share his own experiences and knowledge to help Naruto reach new heights. And Sakura might be there too. She could be involved in battles where Naruto's mokuton powers are crucial, using her medical skills to support the team while Naruto uses his powers for offense and defense.
Obviously Naruto is the main character as it's in the title. But often, characters like Sakura, Hinata, and even Kakashi might be involved. Sakura could be the one Naruto tries to impress with his godlike and pervy antics. Hinata might be the shy observer or the one Naruto has some special pervy - like moments with. And Kakashi could be the one who has to keep Naruto in line when his pervy side goes a bit too far while also being amazed by his godlike powers.
Obviously Naruto himself. Since it's about his godlike speed, he's the central figure. Sasuke is also likely to be involved as his rival. Their interactions, with Naruto's speed being a major factor, can create intense and exciting storylines.
Obviously, Bella is a main character. Edward is often still involved as her love interest. Even if Bella is godlike, their relationship can be explored in new ways, like how Edward copes with Bella's new - found power.
Sasuke is also a popular choice. Given his complex character and his quest for power, in a time - travel scenario, he could go back in time to gain more power or change the events that led to the downfall of his clan. Another character is Kakashi. His past and his relationship with Obito could be explored in a time - travel fanfiction. He could try to prevent Obito's fall to the dark side if he had the power to time - travel.
Naruto himself is often a central character in 'naruto destruction fanfiction'. Since he is the main protagonist of the original series, fanfiction writers like to put him in situations where he has to deal with destruction. Sasuke is also frequently involved as his rival, and their relationship can be explored in the context of destruction, like if they have to work together to stop a greater threat of destruction.
Well, Naruto is obviously a main character in most of these. But there could also be Sasuke. He might be either an ally or an adversary in relation to the dagger. For example, if the dagger has a power that can either be used for good or evil, Sasuke could be tempted by its darker potential.
Some fanfictions might also include characters like Kakashi in important roles. As Naruto's former teacher, he could be a guiding figure or someone who has to adapt to Naruto's new level of power. He might also be involved in trying to keep Naruto's power in check if it starts to have negative effects on the ninja world.
Naruto himself is often a main character in naruto helmet fanfiction. Since he is the protagonist of the original series, it makes sense that he would be involved with a special helmet in fan - created stories. He could discover the helmet's powers and use them to become even stronger.
Naruto himself is often involved. Since he's the main character of the original series, in fanfiction with loopholes, he might use some loophole to achieve his goal of becoming Hokage faster or getting stronger in a unique way. Sasuke could also be a main character in such fanfictions. He might find a loophole to deal with his quest for revenge or his power - seeking in a different manner.
In many Naruto scream fanfiction, Kakashi Sensei can also play an important role. He might be trying to teach Naruto how to control his scream in a more strategic way, or he could be using Naruto's scream as a signal during a mission. Also, characters like Jiraiya might be involved. Jiraiya could be training Naruto to use his scream as a form of attack or defense, as part of some new and unique jutsu.