Since I haven't read the 'castle in the stars graphic novel', it's difficult to say exactly who the main characters are. However, it's common in such stories to have a young hero or heroine who is on a quest. There might also be a wise old mentor figure, and perhaps some quirky sidekicks. It could also be that the main characters are a family who are trying to protect their castle in the stars from invaders or some sort of threat.
I'm not sure as I haven't read it. But they could be brave adventurers or maybe royalty from the star - castle.
Perhaps there is a group of misfits as the main characters. They could be outcasts who have found a home in the castle waiting. Each of them might have their own backstory and skills, and together they form an interesting dynamic within the walls of the castle. This would make for a diverse and engaging set of main characters.
Given the title 'sand castle graphic novel', one possible main character could be an artist. This artist might be visiting the beach to get inspiration and is drawn to the beauty of sand castles. As they start to create their own sand castle, they might have some kind of spiritual or emotional journey, and this artist would be the central figure in the graphic novel.
As I haven't read it, I can't say for sure. But probably the lady who the title refers to is one of the main characters. There could also be knights, servants, or other nobles in the castle as important characters.
I'm not sure exactly, but it could be an adventurous young person, perhaps a brave boy or girl.
I don't know the exact main characters since I haven't read it. But it could be a brave mouse leading the other small animals, or a wise old owl that gives advice.
Perhaps there is a group of adventurers as the main characters. They hear rumors of the garden of stars in the west castle and set out on a journey. Each member of the group could have a unique skill or trait. One might be strong and fearless, another could be wise and good at deciphering ancient texts related to the garden, and they all work together to uncover the mysteries of the garden.
There's no way to know without more details. It could be that the main characters are a group of rock stars in a band, each with their own distinct personalities and backstories. Maybe there's a lead singer who is the face of the group but has issues with self - confidence, a guitarist who is a musical genius but has a troubled personal life, and a drummer who is the glue that holds the band together.
Since I haven't read it, I can't say for sure who the main characters are. But they could be people with a strong sense of adventure if it's a story about exploring the mystery of the lost stars.
I'm not sure specifically as I haven't read this graphic novel in detail. But usually, the main characters are the ones driving the plot forward, like a hero or heroine with some special abilities or a unique mission.
I don't know as I haven't read it. It could be a young protagonist with big dreams, or perhaps a group of friends on a shared journey.