There could be a character who is a bit of an outcast in the story, and the roses are the only thing that gives them solace. This character might be at odds with the society in the novel, and the roses become a way for them to find meaning and connection. Another possible main character could be a poet who is inspired by the roses to write beautiful verses, and through his or her poetry, we learn more about the significance of the roses in the story.
Since I don't know the exact 'rose novel', I can't say for sure. But it could have a female protagonist who is drawn to the beauty and mystery of the roses in the story.
Maybe there's a gardener as one of the main characters. If the novel focuses on the roses, a gardener who takes care of them would be a likely main character. He or she might have a deep connection with the roses and through that, get involved in other events in the story, like meeting other characters who are also interested in the roses for different reasons.
Without reading the 'the white rose novel', it's really difficult to determine the main characters. However, it's possible that there is a gardener or botanist type of character if the white rose has some special botanical significance in the story. Or perhaps there are two characters from different social classes whose paths cross because of the white rose, like a rich heir and a poor artist, and their relationship develops around this symbol of the white rose.
William of Baskerville is a central figure. He's a learned man with great deductive skills. He's sent to investigate the strange happenings in the abbey. Adso of Melk is his sidekick, so to speak. As a young novice, he provides a different perspective and is in awe of William's abilities. Jorge of Burgos, the librarian, is a complex character. His actions and decisions drive much of the plot as he has a strong influence over the abbey and its secrets.
I'm not sure exactly as I haven't read it. But it could be a king or queen since there is a crown in the title. And maybe a person who is associated with the rose, perhaps a gardener or a noble who has a special relationship with the flower.
In the 'Rose Madder' novel, the central character is a woman seeking to escape her violent husband. She is the focus as we follow her journey of escape and new beginnings. Her husband is a key figure too, being the antagonist. There might be other minor characters that she meets during her new life, but these two are the most prominent ones in the overall narrative.
Briar Rose is definitely one of the main characters. And probably there is a prince who wakes her up from the long sleep.
In 'Name of the Rose', William of Baskerville stands out as a main character. He has a rational mind and is determined to uncover the truth behind the strange happenings in the monastery. Adso of Melk, his novice, is with him throughout the journey. Adso is impressionable and his perspective as the narrator gives us insights into the story. Besides them, the abbot and other monks in the monastery are important as they are involved in the power struggles and the mystery that drives the plot.
I'm not sure specifically as I haven't read it, but it could be a code - breaker, a spy, or a person in a position of power.
There's no way to know exactly without more information. However, if it's a typical graphic novel, there could be a hero or heroine, which could be Rose if the title is related to her. There might also be an antagonist, someone who opposes Rose's goals or causes trouble for her. And then there could be side characters like a wise old mentor or a mischievous little brother.
Since I don't know the specific 'the black rose novel', I can't say for sure. But it could have a brave hero or heroine as a main character, someone who is drawn to the mystery of the black rose.
I don't know for sure, but perhaps there could be a gardener who takes care of the rose garden. This person might be central to the story as they know all the secrets of the garden.