Naruto is the central figure for sure. But in many fanfictions, characters like Jiraiya could be involved. Jiraiya, being Naruto's mentor in some ways, would want to study the curse mark and find a way to either remove it or help Naruto use it safely. Another character could be Orochimaru. Since he is associated with the curse mark in the original series, he might make an appearance, either as an antagonist trying to manipulate Naruto through the curse mark or as a source of information about it.
In 'naruto get the curse mark fanfiction', Naruto is the primary character. However, other characters like Sakura could be involved. Sakura, being Naruto's friend, would be concerned about him. She might try to find medical ways to ease the effects of the curse mark or support Naruto emotionally during his struggle. And then there's also the possibility of characters from other villages getting involved. For example, if the curse mark has some connection to an outside force, a shinobi from another village might show up to either help or hinder Naruto's journey with the curse mark.
Often, Sonic characters like Sonic himself or Tails might be involved. Since the Tails Doll is related to the Sonic franchise, they could be trying to save their friend or the world from the curse. Maybe Sonic, with his speed and courage, is on a mission to stop the Tails Doll's curse from spreading further.
Often, Harry Potter himself is involved. Since he has faced so many curses and dark magic in the original series, it's natural for him to be part of the story in fanfiction, trying to find cures. Hermione Granger is also a common character. Her vast knowledge of magic and potions would be very useful in the search for cures.
Naruto and Sasuke are often main focuses. Since they are central to the theme of the curse of hatred in the original series, in fanfiction they are likely to be explored even more in the context of this curse. Their relationship and how they each deal with the pull of hatred is a common thread.
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.
Obviously Naruto himself is a main character. He is the one with the pacemaker so he is central to the story. Sasuke might also be involved. He could be initially skeptical of Naruto's new situation with the pacemaker but then come around to help. Sakura too, as a medical ninja, she could play a crucial role in understanding and perhaps even trying to modify the pacemaker.
Naruto is almost always a main character in 'naruto dice fanfiction' as the story is based on the Naruto universe. His friends like Sasuke and Sakura also often appear. Sasuke's cool and brooding nature can add an interesting dynamic when combined with Naruto's more upbeat and impulsive personality in stories related to the dice.
Naruto himself is obviously a main character in such fanfictions. His growth in intelligence is usually the central focus. Sasuke can also be involved as Naruto's rival or ally in situations where intelligence plays a crucial role. Sakura, with her own intellectual capabilities in medical ninjutsu and general knowledge, often appears as well.
Sasuke is also commonly involved. His own journey of self - discovery and redemption is a rich area for fanfiction writers. His complex past and his actions that have caused harm in the Naruto world make his redemption arc an interesting topic to explore, especially in relation to how he reconciles with Naruto and the rest of the village.