Perhaps there are original characters created by the fanfiction writer. They could be individuals who have unique powers or knowledge about the multiverse and play a crucial role in the war. For example, a character who can sense the weak points in the fabric of different universes and uses that to plan attacks or defenses. There might also be characters who are versions of existing characters but with different personalities or abilities due to the differences in their respective universes.
Obviously Naruto is one of the main characters, especially in his 'god' form or different multiverse versions of himself. Sasuke might also be a key character as he often has a complex relationship with Naruto. And there could be other characters like Kakashi or Sakura who interact with this new, more powerful Naruto in different ways depending on the plot of the fanfiction.
Definitely the core Avengers like Iron Man, Captain America, Thor etc. Since it's about the multiverse colliding, we'll probably see their alternate versions too. For instance, a more steampunk - inspired Iron Man from a different universe or a female Captain America.
Typically, the main characters would include the well - known Fairy Tail members like Natsu, Lucy, Gray, and Erza. Since it's a multiverse fanfiction, there might also be versions of these characters from different multiverses that play important roles. They could have different powers or characteristics compared to their original counterparts.
Often, the main character is the godlike gamer, but there could also be other characters like mentors or rivals. The mentors might help the gamer understand the rules of the multiverse, while the rivals could be other powerful gamers from different universes competing with the main character.
The main characters would likely be the members of the Justice League, such as Superman, Batman, and Wonder Woman. Since it's about the Justice League watching the multiverse, they are the central figures.
In 'Spider - Man: Into the Spider - Verse', Miles Morales is a central character. He is the new Spider - Man from his universe and has to team up with other Spider - People from different universes like Peter Parker from an alternate reality. In 'Doctor Strange in the Multiverse of Madness', Doctor Strange himself is the main character. He has to navigate the dangerous multiverse to stop various threats.
Ash Ketchum is often a very popular character in pokemon multiverse fanfiction. Since he's the main protagonist in the original series, fans like to put him in different multiverse scenarios. Another popular one is Team Rocket's Jessie and James. Their comical antics can be explored in different universes. And of course, many of the legendary Pokémon are popular characters in fanfiction. They often have important roles and are central to many multiverse storylines.
Well, Weiss is quite popular in RWBY Multiverse Fanfiction. Her growth as a character, from a somewhat spoiled heiress to a strong fighter, is explored in different ways in the multiverse. Ruby is always a top pick too. Her determination and unique abilities like her speed and scythe - wielding skills are fun to play around with in different multiverse settings. And Pyrrha, even though she had a tragic end in the original, is often resurrected or given different fates in fanfiction, which makes her popular as well.
Definitely Naruto and Sasuke. They are the two main characters in the original Naruto series, and in multiverse fanfiction, their different versions are often central to the stories. For example, a story might focus on a Naruto who was raised differently and how that affects his relationship with Sasuke. Hinata is also popular as she has a lot of potential for character development in different multiverse scenarios, especially in relation to Naruto.
Well, the main characters are usually Natsu and Lucy. Natsu, with his dragon - slayer magic, is a powerful fighter. Lucy, on the other hand, has her celestial spirits to aid her in battles during the war scenarios in these fanfictions.