From the 'Twilight' side, Edward and Bella are very popular characters to include. Their complex relationship could add a lot of drama to the fanfiction, especially when combined with elements from the 'Fire' and 'Light' concepts. Maybe the fire light could have an impact on Edward's vampiric abilities or Bella's connection to the supernatural world.
For the 'Twilight' side, you could include Bella, Edward, and Jacob. They are the main characters and would bring a lot to the story. From the 'fire and ice' world, Jon Snow would be a great addition. His sense of honor and leadership could interact in interesting ways with the Twilight characters. Also, Daenerys Targaryen with her dragons could add a whole new level of power and drama. Her dragons might be seen as a threat by the vampires or werewolves, or they could form an alliance.
Clay from 'Wings of Fire' would be a great character to include in crossovers. His kind and brave nature could make him a valuable ally in different universes. Also, Harry Potter could be included if it's a 'Wings of Fire' and 'Harry Potter' crossover. His magical skills and leadership could be interesting to combine with the dragon - related elements. And Anakin Skywalker from 'Star Wars' could be another popular choice. His fall to the dark side and then redemption could create a complex dynamic when interacting with the dragons.
A great character to include would be a female hockey journalist who is covering the team. She could be feisty and determined to get the best stories. Another good one is the team's equipment manager. He knows every little detail about the players' gear and is always there to make sure everything is in top shape. Also, a mysterious figure who shows up at twilight near the rink and seems to have some sort of connection to the team's success or failure.
Alice Cullen would be a great character to include. Her ability to see the future could be affected by the spellbound aspect, like she sees fragmented and confusing visions due to some new magical interference. Also, Jacob Black could be interesting as he tries to protect the town from any new threats that come with the spellbound elements.
You could include a passionate and talented lead dancer like Mia from 'Step Up' - type character. Also, a strict but fair dance instructor who has high expectations for their students. And don't forget about the rival dancer who is always trying to outshine the main character.
A court jester can add some humor. He can be the one who sees through the courtly pretenses and gives the emperor some down - to - earth advice in a comical way.
In these fanfictions, Carlisle Cullen can be a popular character. As a doctor in the Twilight series, in the billionaire fanfiction world, he could be a highly respected and wealthy doctor who is part of the Cullen billionaire family. Alice Cullen is also likely to be a popular choice. Her ability to see the future can add an interesting twist to the billionaire plot, like she can foresee business deals or threats to the family's fortune. Then there's Rosalie Hale. She might be the glamorous and sometimes haughty member of the billionaire vampire family.
The main characters would likely still include Bella, Edward, and Jacob as they are central to the Twilight universe. However, there may be new characters introduced in this fanfiction that are related to the 'playing with fire' aspect. Maybe a pyromancer or a character with a special connection to fire.
Well, it's likely that the main characters from the Twilight series like Bella, Edward, and Jacob still play important roles. However, there could be new characters introduced as well. Maybe a powerful vampire from a far - off coven or a werewolf with unique abilities.
Definitely their friends from Ponyville. Pinkie Pie could be included to add some fun and parties to their married life. She could throw surprise anniversary parties or help them celebrate special occasions. Rainbow Dash could be there to add some action and adventure. Maybe she could join them on their quests or help protect their home when they are away.