I'm not familiar with this particular 'back to life novel', so I can't name the exact main characters. However, generally speaking, it could have a protagonist who has passed away and is now back. There might also be an antagonist who either opposes the idea of the character coming back to life or has a vested interest in their new state of being. Additionally, side characters who are witnesses to the whole process or are involved in the events leading up to and after the resurrection could also be considered main characters depending on their importance in the story.
Since I don't know the specific 'back to life novel', I can't say for sure. But it could have a character who has come back to life as the main character, along with those who are affected by their return, like family members or friends.
In a 'back to life novel', the main characters could be diverse. There might be a scientist or a healer who is responsible for bringing someone back to life. Then, of course, the person who is resurrected would be a central character. Their loved ones, such as a spouse, parents, or children, could also be main characters as they deal with the implications of the resurrection. For example, if it's a historical 'back to life novel', there could be a character from the past who is brought back to modern times, and the people who discover and help them adjust would be main characters as well.
I don't know as I haven't read the novel. It could be a couple who had a history together, like a young man and a young woman who were once in love in high school or college.
Typically in a novel like this, there would be a group of trophy wives at the center. Each wife might have her own distinct personality, goals, and backstory. There could also be some supporting characters like their friends outside the 'trophy wives club', family members, or maybe even some rivals within their social circle. Without reading the book, it's hard to say for sure who the main characters are, but it's likely to revolve around these types of characters.
There could also be a mentor - like character. Someone who has either been through a similar experience before or has some special knowledge that can help the protagonist in their journey through hell and back. For example, an old wise man or woman who gives crucial advice at key moments.
In 'the way back novel', the main characters could be a group of people. For example, a family might be on a collective journey back to their heritage or a place of significance. Each family member could have their own role, with one being the leader of the journey, another being the one who questions the whole idea, and others having different reactions to the events that unfold during the way back.
Since I don't know the 'Back in Black Novel' well, it's hard to say exactly. But there could be a strong - willed protagonist who is at the center of the story, maybe someone who has a troubled past.
Since I haven't read this book thoroughly, I can't name the exact main characters. However, they could be people from different walks of life. There could be a young, ambitious character trying to make a name for themselves, and an older, more established character who acts as a foil or a mentor in some way.
Doc Brown is another main character. He invents the time - traveling DeLorean. He is a brilliant but eccentric scientist. His wild ideas and inventions drive the story forward as he is the one who makes the time - travel possible for Marty.
Kakashi might also play a big role. As Naruto's former teacher, he would be both happy and cautious about Naruto's return. He could offer his wisdom and guidance as Naruto adjusts to his new life. Also, Sakura would be there. She might be overjoyed at first, but then also be concerned about the implications of Naruto's resurrection. She could use her medical skills to check on Naruto's condition and also fight alongside him in new battles.
Since I haven't read the 'hold back this day novel', I can't tell you who the main characters are.
I don't know the specific characters in this novel as I haven't read it. But they could be ordinary people who find themselves in extraordinary situations that require them to never go back.