Not having read 'the lost family novel', it's difficult to name the exact main characters. However, in a general sense, in a story about a lost family, there could be a central figure who is the catalyst for the family's situation. This could be someone who made a mistake that led to the family being lost, or someone who holds the key to bringing the family back together. There would also likely be the core family members such as the mother, father, and their children. Each of them would have their own personalities and roles to play in the story of the lost family. For instance, the mother might be the emotional anchor trying to keep the family together during the crisis, while the father could be the one taking more practical steps to find the lost parts of the family.
Since I'm not familiar with the book, the main characters could be various family members with different personalities and roles. There might be a rebellious teen who has run away from home, causing the family to be 'lost' in a sense, and the other family members are trying to bring this character back and restore the family harmony.
I'm not sure as I haven't read the novel. But they could be the members of the lost family, like a lost child, a parent searching for their offspring, or siblings separated from each other.
In the 'the lost martin family story', the main characters would most likely be the Martins. There might be a Mr. Martin who is the head of the family, a Mrs. Martin, and their kids. The story might also include other characters who interact with the family during their 'lost' state, like neighbors or people who try to help them find their way, but the core would be the Martin family members.
Since I haven't read the book, I can't say for sure. But they could be the lost boys and girls themselves, with each having their own distinct personalities and backstories.
In 'For a Lost Soldier' novel, perhaps there is a young boy or girl who forms a connection with the soldier. This character could bring out different sides of the soldier's personality. And of course, there may be other soldiers or military personnel who play important roles in the story, either as comrades or antagonists to the main soldier character.
Perhaps there are also some supporting characters like a wise old woman who gives the lost girls advice. Or a young boy who befriends them and helps them in some way. There could also be an antagonist, maybe someone who is trying to keep the girls lost or is causing the problems they are facing.
The main character in 'the lost weekend novel' is an individual who is deeply entrenched in the grips of alcoholism. He is at the center of the story, and his experiences, his highs and lows related to his drinking habit form the core of the narrative. There are likely other characters such as those in his social circle, perhaps a friend who tries to help him or a family member who is worried about his condition. However, to get a more comprehensive understanding of all the main characters, one would need to thoroughly read the novel as their roles and significance may be more nuanced and complex than what can be initially assumed.
Since I'm not familiar with the 'lost stars novel', the main characters could be individuals with different backgrounds and personalities. Maybe there's a misfit who doesn't fit into the norms of society, and a more conventional character who helps the misfit on their journey. There could also be a mentor - like figure who provides guidance to the other characters as they struggle with their 'lost' states.
I'm not sure without reading the novel specifically, but they are probably the lost girls themselves and maybe the people who are looking for them.
Well, there is the lost daughter herself. She is the central character around whom the story revolves.