I don't know since I haven't read it. It could be a young couple perhaps.
I don't have information about this novel so I can't tell who the main characters are.
The main character is likely a strong - willed individual. Maybe a former military or someone with a special set of skills.
It's likely that there are characters representing different social classes. There could be a noble figure who has to deal with the responsibilities of his or her position, and a commoner who dreams of a better life. These characters would interact and their stories would unfold throughout the 'world without end' setting.
The central character is an Irishman who embarks on a journey in America. He has friends and foes along the way. His military superiors and the Native American chiefs he meets play important roles in the story. There are also some fellow immigrants who add depth to the story by showing different ways of adapting to the new land.
Maybe there are voices from different historical periods who are reflecting on the possibility of a world without humans. These voices could be from ancient philosophers or modern environmentalists, all contributing to the overall narrative of the novel without being traditional characters.
I'm not sure specifically as I haven't read this novel in detail. But probably there would be female leaders who emerge in this new world. They could be the ones guiding the other women through the chaos of suddenly being in a male - less world.
I'm not entirely sure as I haven't read it recently, but usually there would be a protagonist who is likely to be a defender of the world without thieves concept, and perhaps an antagonist who challenges this idea.
Since I haven't read the 'lost without love novel', it's difficult to say exactly who the main characters are. However, based on the title, they are probably individuals who find themselves in a difficult situation due to the lack of love in their lives. They might be lonely hearts, or people who have lost love and are now trying to find their way back. It could also include characters who have never experienced true love and are searching for it.
The main character is surely the man without a face. But there could be other important characters as well. There might be a doctor or a scientist who is intrigued by his condition and tries to study him. There could also be a love interest who sees past his lack of a face and falls in love with his inner self. Additionally, there may be some characters from his past who are somehow related to the reason he is without a face, like an old acquaintance who knows a secret about his transformation.
I don't know for sure as I haven't read it, but it could have a protagonist who is on a quest related to the house without a key. Maybe a detective - like character if it's a mystery novel.