Well, obviously the moon and star themselves could be the main characters. They could be personified entities with their own personalities. The moon could be calm and wise, while the star could be more impulsive and energetic.
There could also be a guardian figure who has been protecting the moon and star for a long time. When the forces of evil become a greater threat, this guardian steps up to help the moon and star in their fight. Maybe it's an old wizard or a magical creature like a phoenix.
Obviously, Star could be one of the main characters. She could have an adventure in the mermaid world and her character traits like her fearlessness and her ability to adapt would make for an interesting story. Another main character could be a mermaid named Marina. She could be the one who helps Star understand the mermaid world and they form a strong friendship.
Star is definitely one of the most popular. Since she's the main character in the show, a lot of fanfics revolve around her adventures and her growth. Marco is also quite popular as he has a great dynamic with Star. Then there's Tom, Star's ex - boyfriend. His complex relationship with Star makes him a favorite in many fanfics.
Well, obviously Tom and Star are the main ones. Tom with his demon powers and complex personality, and Star with her magical princess powers and her free - spirited nature. They are the core of any Tom Star fanfiction.
The main characters include Star Butterfly, a magical and somewhat chaotic princess. She has a big heart and a lot of power. Marco Diaz, her best friend, who is a normal human but gets caught up in all the magical craziness. Queen Moon Butterfly, who is a strong leader in their dimension. And there are villains like Ludo, who constantly tries to steal Star's wand and cause trouble for her and her friends. Each character brings their own unique flavor to the story.
It could be an ancient, powerful demon that has been awakened by the chaos in the magical realms. This demon might have a vendetta against Eclipsa's family specifically and wants to destroy her line.
Maybe the main villain is a corrupted ninja who once was on the side of good but was seduced by the power of the dark side. He now leads the forces of evil and has a personal vendetta against Naruto Star, seeing him as a threat to his newfound power and plans.
A powerful dark wizard from another dimension could serve as the main antagonist. He might be interested in Meteora's unique powers and wants to use them for his own evil purposes. So he constantly tries to capture or manipulate her throughout the fanfiction.
There could also be new villains created specifically for the fanfiction. For example, a dark magic user who wants to use the unborn child's magic for their own evil purposes. They could try to kidnap Star or find a way to transfer the baby's magic to themselves.
Pony Head is a character that could be explored more. In fanfic, she could have a backstory about how she became so self - centered and what really happened to her family. It would add depth to her character.
The main characters include Star Butterfly, a magical princess from another dimension. Marco Diaz, her best friend and later love interest. And there are various villains like Toffee who play important roles in the story.