Severus Snape is a fan favorite in alternate universe stories. People are interested in seeing his character developed further, perhaps in a world where he didn't have such a complex relationship with Lily Potter. Harry Potter himself is, of course, a popular choice. Fanfic writers might create scenarios where Harry discovers his magic much earlier or has different adventures outside of Hogwarts that change his character development.
Well, Hermione is often depicted in different ways in these fanfics. In some alternate universes, she could be a powerful dark witch instead of the studious and good - hearted character we know. Ron might be a super - confident and arrogant character rather than the sometimes insecure boy in the original story. Also, Snape could be a completely different person. He could be a jolly and friendly teacher rather than the brooding and complex one we are used to.
Hermione Granger often remains popular. In alternate fics, she might be portrayed as an even more powerful witch, leading new magical research or changing the way magic is taught. Harry Potter himself is also a common focus, maybe with different powers or a different role in the wizarding world.
Tom Riddle (before he became Voldemort) is a popular character to explore in alternate universes. Writers can delve into his early years, his time at Hogwarts, and what could have been different to prevent him from turning into the Dark Lord. Also, the Weasley twins are often used in fanfiction. Their prank - loving nature can be used to create all kinds of chaos and humor in different universes.
Rey is often a popular character in Star Wars alternate universe fanfic. Writers like to explore different paths for her, such as her training under different Jedi masters or her relationship with other characters in new ways. Kylo Ren is also popular. Fanfic authors might write about his redemption in more complex scenarios than in the official story. And of course, Darth Vader. There are always fanfics that imagine what would have happened if he had survived and changed his ways, or if he had different relationships with other Sith or Jedi in the alternate universe.
Naruto himself is often reimagined. Writers like to explore different versions of him, such as a Naruto with a darker personality. Sasuke is also popular. In some AUs, he could be a more carefree character. And Kakashi is another one. Maybe a Kakashi who didn't have to endure so much trauma at a young age.
Scully is also highly popular. Her scientific mind and her relationship with Mulder, whether it's changed or intensified in the alternate universe, are always interesting aspects for fans to write about. Sometimes she might be even more of a skeptic or more open - minded depending on the fanfic's concept.
Well, in many Percy Jackson alternate universe fanfic, Leo Valdez is quite popular. People love to write about his inventions in different scenarios. Maybe he creates a super - powerful weapon that changes the balance of power between the demigods and the monsters. Grover also has his fans in these fics. He could be in a universe where he's the most powerful satyr ever and has to use his nature - related powers to save the world. And of course, Clarisse La Rue can be really interesting in alternate universes, like a Clarisse who teams up with her former enemies to fight a greater threat.
Hayato Gokudera is quite popular. In an alternate universe, he might be a lone samurai in a feudal Japan - like setting, or a tech - genius hacker in a cyberpunk world. Then there's Yamamoto. He could be a star athlete in a world where sports are the main focus instead of Mafia activities. His natural athleticism and positive attitude would make him a great character to develop in such a setting. Also, Hibari is often chosen. He could be the strict headmaster of a strict academy in an alternate educational - themed universe.
Harry and Draco are one of the most popular pairings. Their relationship in the original series is full of tension, and in alternate universe fanfiction, it's often explored in different ways, like they could end up as friends or more than friends. Another popular one is Hermione and Ginny. They are both strong female characters, and fanfiction might explore their relationship in a more romantic or just a very close friendship way.
Hermione Granger remains very popular. In alternate timelines, she can often be portrayed as even more powerful or having different roles. For example, she might be a leader in a wizarding revolution. Harry Potter himself is also a central figure in most of these fanfictions, with his story being tweaked in various ways. And Draco Malfoy is often a popular character as well. His complex personality allows for a lot of interesting character development in alternate timelines, such as him becoming an ally to Harry instead of an enemy.