Since I don't know the specific story, it could be the new tenants themselves, perhaps a family or a group of friends.
The main characters in the 'the new tenants story' would be the new people who are moving in. If it's a family, then the parents and children would be central. They might also have a pet which could be a character in its own right. And as I mentioned before, there could be the neighbors who play a significant role, some might be helpful and friendly, while others could be nosy or even hostile, which would create interesting dynamics in the story.
In the 'the new tenants story', the main characters are likely the new tenants. There might also be secondary characters like the landlord, the neighbors, or even people who work in the local area that the tenants interact with. For example, if they move into an apartment building, the doorman or the building manager could be important characters in the story.
Since I haven't read it, I can't say for sure. But usually, the main characters would be the most prominent tenants in the house, perhaps those who have the most influence on the events in the house.
The 'the new tenants story' might be about the experiences of new tenants in an apartment or a house. Maybe they have to deal with a difficult landlord, or they might be making new friends in the neighborhood. It could also involve some sort of mystery or discovery in their new living space.
Since we don't have much detail, the main characters could be a diverse bunch. There might be a fearless leader who drives the plot forward, a smart scientist - type character who figures out solutions to problems they encounter. There could also be a comic - relief character, someone who lightens the mood during tense situations. Or perhaps it's about a family, with a strong - willed parent and curious children, all on a journey together in the 'new horizons main story'.
The Courier is the central character in the New Vegas main story. This character is the one who gets caught up in all the chaos around the Platinum Chip. Then there's Mr. House, a very interesting character who has been around for a long time and has big plans for New Vegas. Caesar is the leader of Caesar's Legion, a very intimidating and powerful figure. And from the NCR side, there are various leaders and soldiers who play important roles, like General Oliver. Each of these characters has their own motives and goals, and the Courier has to interact with them as the story unfolds.
The main character is the Doom Marine. He is the one who battles the demons throughout the story.
Maybe there's a little girl who discovers something special about Christmas that no one else knows. And there could be an old man who helps her on her journey, like a modern - day Santa - like figure. There might also be some mischievous elves that add some fun to the story.
There could be a young adventurer as a main character. This person is tired of their ordinary life and decides to start anew by exploring the unknown world. They are brave and full of curiosity, ready to face whatever comes their way in this new beginning.
The main characters are Jesus, of course. He is the focus of the whole story. His apostles play significant roles. For example, Paul who was initially a persecutor of Christians but later became a great missionary. Also, there are the Pharisees and Sadducees, who were often in opposition to Jesus and his teachings. And there are many others like Lazarus, whom Jesus raised from the dead.
Since we don't have the details of 'the new hangman story', it could also have a witness or a jailer as main characters. The witness might be there to report on the fairness of the process, and the jailer who has been in charge of the prisoner before the execution.
Since I don't know the details of the 'new londo story', I can't say for sure who the main characters are. They could be ordinary citizens, leaders, or adventurers.