The main characters could include Triumphators, and an antagonist, perhaps a powerful wizard who wants to use the war to gain more power. There might also be a love interest for Triumphators, a healer who tries to save the wounded during the war.
It could be about a hero named Triumphators who is forced into war due to some dark prophecy. Maybe he has to fight against an evil empire that is spreading chaos.
I don't know for sure as it depends on the specific fanfic. It could be a powerful wizard as the bringer of war, with other characters like brave knights and wise sages trying to oppose him.
I don't know for sure as I haven't read it. It could be the bringer of war himself/herself, who is likely to be a very complex and powerful character.
Naruto himself is likely to be one of the main characters. He might interact with the demon bringer in various ways. Another could be Sasuke. His rivalry with Naruto could be further complicated by the presence of the demon bringer. And perhaps there could be a new character created specifically for this fanfiction as the demon bringer itself.
Well, Naruto is surely one of the main characters since it's a Naruto fanfiction. He is likely the central figure in the story's pursuit of peace. Sakura might also be an important character, perhaps using her medical skills to help in the process of bringing peace, like treating the wounded from past battles.
In addition to the usual Naruto characters, there could be some original characters created specifically for this fanfiction. Maybe there's a mysterious figure who is either guiding Naruto towards the darkness or trying to stop him from fully succumbing to it. Another possibility is that some minor characters from the original Naruto series get more spotlight in this fanfiction and play important roles in the story related to Naruto's 'bringer of darkness' arc.
Since it's about Naruto being the 'bringer of the end', Naruto is the central figure. However, other characters like Jiraiya could be important. Jiraiya was Naruto's teacher and had a big influence on him. Also, Tsunade might be involved as she is a powerful figure in the Naruto world. And we can't forget about the Akatsuki members. They are often the antagonists in Naruto stories and could be major players in this fanfiction too.
It could be a wizard. With their magical powers, they can use spells to calm angry mobs or resolve disputes between kingdoms.
Power is a common theme. The bringer of war is often associated with great power, and fanfictions might explore how that power is used, abused, or controlled.
Obviously Naruto would be one of the main characters as it's in the title. There might also be his friends like Sasuke and Sakura. Maybe some new characters could be introduced as well who are in need of Naruto's hope - bringing influence.