Well, the vampire princess herself is surely an important character. There might also be her servants or attendants if she has any, who play a role in her shut - in life.
The vampire princess is the key character, no doubt. Then there could be other vampires, perhaps her family members like her parents or siblings who might be involved in her situation. There could also be a love interest, another vampire or a different supernatural being, who helps her break out of her shut - in state or adds more complexity to her vexations.
In this novel, the most important character is the shut - in vampire princess. Additionally, there may be a mentor - like figure, an older and wiser vampire who tries to guide her through her problems. There could also be antagonists, vampires or other creatures who oppose her or cause the vexations she experiences, like those who want to take over her position as princess or who have some vendetta against her family.
I'm not sure specifically as I haven't read this novel in detail. But generally, it might involve the vampire princess's struggles with her shut - in life, perhaps her relationships with other characters in the vampire world or her attempts to adapt to her situation.
The most obvious main character would be the vampire princess herself. But there might also be servants or guardians who are important to the story. Maybe there's a human character who somehow stumbles upon her world and becomes involved in her life.
I'm not entirely sure as I haven't read it specifically. But generally, it might be about a vampire princess who is shut in, perhaps in a castle or some secluded place. It could involve her inner thoughts, her relationships with other characters, and how she copes with her situation.
Your local library could also be a good source. Librarians can help you search for the 'Shut In Vampire Princess Novel' within their collection. They might even be able to order it for you if they don't have it currently. Additionally, some e - library services might have it available for digital borrowing.
Lestat is a very important character. He is flamboyant and often serves as a contrast to Louis. He is more in tune with his vampire nature and is not as conflicted as Louis about being a vampire.
The important characters in 'The Vampire Lestat' novel start with Lestat himself. He is the protagonist, and his actions drive the story forward. His maker is important as he is the one who initiates Lestat's transformation into a vampire. Gabrielle, Lestat's mother in his mortal life and later a fellow vampire, is a significant character. She has a strong influence on Lestat, and their relationship is a complex mix of love, respect, and sometimes conflict. Then there are characters like Nicolas, Lestat's friend from his mortal days, whose fate has an impact on Lestat's emotional state. And of course, other vampires like Armand and Marius also play important roles in the story. Armand has his own power and influence in the vampire world, and Marius has a long history and a lot of knowledge about vampires which he imparts to Lestat at times.
Westley is important as he's the hero in love with Buttercup. Buttercup is crucial as the object of Westley's love and the princess. Prince Humperdinck is significant as the main antagonist. Inigo Montoya is important for his revenge story arc. And Fezzik is important for his friendship with Inigo and his role in the various adventures.
Mia Thermopolis is the main character. She's the girl who discovers she's a princess. Her grandmother, Queen Clarisse Renaldi, is very important as she guides Mia through the process of becoming a princess. Then there's Lilly Moscovitz, Mia's best friend, who has to deal with Mia's new life too.
The setting of the novel might be quite fascinating. Since she's a shut - in, the places she inhabits, perhaps a dark and mysterious castle or lair, could add to the overall atmosphere. Also, the relationships she forms, if any, with the outside world while being a shut - in would be an interesting aspect to look at.
The most crucial character is Carmilla herself. She is a complex character with her own motives and desires. Laura is also very important. Her relationship with Carmilla is central to the story. There are some minor characters like the local doctor who might be involved in trying to figure out what is wrong with Laura when she starts showing signs of being affected by Carmilla. And there are other female characters in Laura's social circle who might also be potential victims or witnesses.