The Dark Queen could be a great focus for fanfiction. She is often overshadowed by the main male characters in the game. But in fanfiction, you could delve into her motives, her backstory, and her plans. What if she had a different goal all along? Maybe she was trying to protect something or someone in her own, rather convoluted way. You could also explore her relationship with other characters, like how she views the protagonist and what she really thinks of the ongoing conflict.
The Forgotten One. He's a character with a lot of mystery surrounding him. In fanfiction, you could explore his past, his powers, and how he came to be in the state he is in the game. Maybe he was once a great hero who was wronged and is now seeking revenge in his own, rather strange way.
Sora from Kingdom Hearts could be a fun addition. His positive attitude and his ability to use keyblades and magic would be a different take in the dark Castlevania setting. He could bring a sense of hope and light to the story. Also, Cloud Strife from Final Fantasy VII. His Buster Sword skills and his experience in fighting against powerful foes like Sephiroth could translate well in the battles against the lords and demons in Castlevania Lords of Shadow. His stoic personality would also create an interesting dynamic with the more emotional characters in the game.
The Caragors are often overlooked as just mounts in the game. But a fanfiction could be written from their perspective. Imagine a story about a Caragor that has a special bond with a ranger, and how they fight together against the forces of evil. Also, the Gravewalkers are underrated. They have this spooky and mysterious element. A fanfiction could delve into their origin, what they are really made of, and their role in the grand scheme of the Shadow of War universe. It could be really interesting to see how they interact with other characters and how they came to be in Middle - earth.
One idea could be a crossover where Naruto characters find themselves in the dark and Gothic world of Castlevania: Lords of Shadow 2. For example, Naruto's ability to use chakra could be pitted against the dark magic of the Castlevania universe. Maybe Naruto and his friends have to team up with the protagonist of Lords of Shadow 2 to defeat a common enemy that threatens both their worlds.
The Wasp. She is a powerful and intelligent character. A fanfiction could center around her leadership skills within the Avengers. Maybe she has to lead the team in a situation where all the big - name heroes are incapacitated. It would show her strategic thinking and her ability to inspire others.
The stable hands who take care of the dragons often get overlooked. They have a unique perspective as they interact closely with the dragons on a daily basis. Fanfiction could explore their lives, their dreams, and how they view the dragon riders.
The White Rabbit is often just seen as the one who leads Alice into Wonderland, but he could be so much more in fanfiction. He could be a time - traveler, for example, and his hurry is because he's always on a tight schedule to different eras. The Tweedle brothers are also underrated. They could be the key to unlocking some ancient secrets of Wonderland. In a fanfiction, they could lead Alice on an adventure full of riddles and puzzles that reveal the true nature of Wonderland. And the Caterpillar is quite an interesting character to focus on. It could be a wise sage who holds the knowledge of the entire Wonderland universe.
Shino Aburame is quite underrated. In a fanfiction, he could be shown as a key figure during the Revolution. His unique insect - based jutsu could be developed further, and his calm and intelligent nature could be used to his advantage in the political and social upheaval of the time.
Hot Pie. He may seem like a minor character, but he has a lot of potential. A fanfiction could explore his life after leaving Arya. Maybe he becomes a famous baker in a large city, and through his bakery, he gets involved in the political intrigues of the city as people from all classes come to his establishment.
Hot Pie is an underrated character. He could be the focus in a fanfiction where his baking skills become more than just a side note. Maybe he bakes special treats that have magical or medicinal properties and gets caught up in the big political and power struggles because of it.
Definitely the Northuldra people in general are underrated as a whole for fanfiction. They have a rich culture that we only got a glimpse of in the movie. Focusing on one of the unnamed Northuldra characters, perhaps a young girl who was there when Elsa first arrived in the forest. She could have her own perspective on the events and her own story of how she saw Elsa as a potential savior or a threat. Also, the guards from Arendelle who were with Mattias could be the focus. Their adjustment to living in the forest for so long and their loyalty to Mattias could be explored in a fanfiction.