I don't know since I haven't read it. But they could be members of a family that the story follows across seven generations.
I'm not sure specifically as I haven't read it. But generally, a graphic novel often tells a story through a combination of illustrations and text. It might be about the concept of seven generations, perhaps exploring the impact of actions over the course of seven generations in a family, a community or even for the whole planet.
Since we don't have much information about the 'Seven Worlds Graphic Novel', the main characters could be a diverse group. Maybe there's a young protagonist who discovers their connection to the seven worlds and has to lead the way. There could also be some wise old mentors from different worlds who guide the main character. There might be characters with special powers or abilities that are unique to their respective worlds, and together they form a team to face whatever challenges the seven worlds present.
I don't know for sure as I haven't read the graphic novel. But it could be the family members who are preparing and participating in the Feast of the Seven Fishes.
Perhaps there are knights who are renowned for their skills in combat or their noble reputations. It might also include lords or ladies who have a significant influence on the knights' actions. Maybe there are characters like a young and ambitious knight trying to make a name for himself, or an older, wiser knight who serves as a mentor to the others.
There's no way to know for sure without reading the graphic novel. But it's likely that there are characters related to the feast in some way. It could be an older family member who has passed down the traditions of the Feast of Seven Fishes. There might be children who are learning about the feast for the first time. And there could be neighbors or friends who are invited to share in the meal, all of whom could be main characters in the story.
I'm not entirely sure, but it might be the knight himself as the central character. There could also be other supporting characters like lords, ladies, and fellow knights.
The main character is Snow White. She is likely to be depicted as a kind and gentle character as in the original story. The seven robots are also main characters. Each robot might have its own distinct personality, like one could be the brave leader, another the comical one, etc. They play important roles in Snow White's new adventure in this graphic novel.
The main characters in the 'Wings of Fire Book Seven Graphic Novel' are probably dragons with various traits. There could be a brave and impulsive dragon who is always ready for a fight. Another character might be a more cautious and intelligent dragon that serves as a strategist. And perhaps there is a dragon with a special power that makes them unique among their kind. These characters would then embark on a journey together, facing difficulties and learning about themselves and their place in the dragon world as the story unfolds.
Captain Jean - Luc Picard is one of the main characters. He's known for his leadership skills and his strong moral compass.
I don't know for sure since I haven't read it. But usually in a novel, the main characters could be those directly involved with the seven secrets, either as seekers or keepers of the secrets.