The fox goddess is, of course, a main character in these fanfictions. Her powers and her nature are usually explored in great detail.
Sometimes other characters like Sasuke can also be involved. He might be curious about the fox goddess's power or might even be in conflict with her if the story takes a different turn. For example, if he sees her as a threat to his own goals or to Naruto's growth.
Well, Naruto is obviously the main character as he has the nine - tailed fox within him. Then there's the fox god itself, which is a central figure in these fanfictions. Sometimes, other characters like Sasuke might be involved. Sasuke could be curious about Naruto's new powers related to the fox god or even be in conflict with Naruto when the fox god's influence changes Naruto's behavior.
Harry Potter himself is often a main character. Since it's related to the Harry Potter world, he would be in the center of the story most likely. He might interact with the goddess, either as an ally or having some sort of conflict.
Obviously, Fox McCloud is often one of the main characters in such fanfiction. Since he is the leader of the Star Fox team, his capture would be a big deal. Falco Lombardi might also be involved, either being captured along with Fox or being part of the rescue team. Peppy Hare could be there too, perhaps using his wisdom to figure out a way to free the captured members.
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.
Definitely Naruto as the victim of hypothermia. Shikamaru could also be involved. He might be the one strategizing the rescue mission, using his intelligence to figure out where Naruto could be in the cold environment. And Hinata might be there too, her concern for Naruto adding an emotional aspect to the story.