Sasuke can be a popular character too. In some fanfictions, he could be in a rivalry with the mask man or even form an unlikely alliance. Kakashi might also be involved as his Sharingan could potentially play a part in unravelling the mystery of the mask man.
Another character that could be popular in 'naruto mask man fanfiction' is Itachi. Since he has his own secrets and is a powerful ninja, his connection to the mask man's story could be explored. Maybe Itachi knew something about the mask man's true identity or purpose all along.
Tobi is also a very popular character in 'naruto mask fanfiction'. Since he already wears a mask in the original Naruto series, fanfiction writers can expand on his identity, motives, and the true power of his mask. They might create scenarios where his mask has even more secrets than what was shown in the anime or manga.
Obviously Naruto is one of the main characters. And the owner or creator of the mask could also be a main character, whether it's a new character introduced in the fanfiction or an existing character with a new role related to the mask.
It's hard to say for sure without reading it. It could be Naruto himself if the shattered mask is related to some new mystery or plot involving him. Maybe Sasuke as well, since he has his own complex character arc that could potentially involve a mask - like secrecy.
Another possible main character could be Kakashi. He is a well - known and experienced shinobi in the Naruto world. His wisdom and combat skills could play a crucial role in a story involving the Orange Mask. For example, he might be the one to figure out the true identity or motives of the Orange Mask character.
Obviously Naruto would be one of the main characters. Since it's related to him and his broken mask.
In the 'naruto has a mask fanfiction', it might be that Naruto finds the mask himself. He could stumble upon it during one of his adventures, perhaps in an ancient ruin or a hidden cave. The mask could be enchanted or have some special property that draws Naruto to it, and he decides to keep it and figure out its secrets on his own.
Naruto himself is obviously very popular as it's his fanfiction. But Sasuke also often plays a big role. Fans love to explore their relationship further in fan - made stories.
His enemies, too. They might realize that Naruto is not as straightforward as they thought. If he shows a more cunning side by dropping the mask, they would have to adjust their battle strategies. For example, Orochimaru might find Naruto a more formidable opponent than he initially believed.
Naruto and Mega Man themselves are often the most popular crossover characters. Since they are the main protagonists of their respective series, fans love to see how they interact. Another popular one could be Rockman (Mega Man) interacting with Sasuke. The contrast between Rockman's more robotic and logical nature and Sasuke's brooding and power - hungry personality can create some interesting dynamics.
Naruto and Saitama are often paired in fanfiction. Their contrasting personalities, with Naruto's exuberance and Saitama's non -chalance, make for an interesting dynamic. Another popular pair is Sasuke and Genos. The brooding nature of Sasuke and the serious, robotic Genos can create some intense storylines.