Then there are the men in Delysia's life, like Nick Calderelli and Phil Goldman. They play significant roles in the story as they are part of the complex web of relationships that Delysia is involved in, and through her, Mrs Pettigrew also gets involved with them, which adds to the drama and development of the plot.
Mrs Pettigrew is obviously one of the main characters. She is the central figure whose day - long adventure we follow.
One of the themes is transformation. Throughout the day, Mrs Pettigrew goes from being a meek and downtrodden woman to someone more confident and self - assured. This change is brought about by the various events and people she encounters during that single day.
Miss Pettigrew is one of the main characters. She is a governess who has a very ordinary and rather difficult life at the start. Then there is Delysia Lafosse. She is an actress and her glamorous but chaotic life is in contrast to Miss Pettigrew's. She is also a key figure as the story revolves around Miss Pettigrew spending a day in her world.
One of the main themes is self - discovery. Miss Pettigrew goes through a day that is completely different from her normal, drab life, and in this process, she discovers new aspects of herself. Another theme could be the contrast between different social classes. The novel shows the lives of the rich and the poor, with Miss Pettigrew being from a lower social class and getting a peek into the glamorous but sometimes empty lives of the upper class.
Mrs Fletcher is obviously one of the main characters. She is the central figure around which the story revolves.
Definitely Hermione and Ron. Hermione would use her intelligence to analyze the situation and come up with a plan. Ron would be the more impulsive one, ready to jump into action. Sirius Black could also be involved. Since he has a history with Pettigrew, he might have some insights into Pettigrew's actions and be able to help in the search for Harry. Also, the Weasley family in general might get involved as they are close to Harry.
The two main characters are Mrs. Muir and the ghost. Mrs. Muir is a strong - willed woman, and the ghost is a mysterious figure.
Obviously, Mr and Mrs Smith are the main characters. They are likely to be at the center of the story, driving the plot forward through their actions, decisions, and interactions.
The main character is of course Mrs Palfrey. Then there's Ludo, who has an important role in Mrs Palfrey's life at the Claremont. There are also the other residents of the Claremont, though they are more in the background, but still play a part in creating the atmosphere of the place.
I'm not sure as I haven't read the novel. But usually, the main characters are the ones whose lives are central to the story. They could be people from different backgrounds like a young artist, an old wise man, or a working - class family member.
I don't know who the main characters are in the '13 lives story' without more information. They could be the 13 people whose lives are central to the story, or the rescuers who save them.