It could be an ordinary person. In some stories, an ordinary person is given an extraordinary opportunity to go to the moon and back. This person might be the main character as they experience this incredible adventure and learn and grow from it, facing their fears and coming back a changed person.
I'm not sure exactly as the 'to the moon and back story' isn't clearly defined here. But it could be astronauts. Astronauts are common main characters in stories about going to the moon and back. They are the ones who brave the journey into space.
I'm not sure exactly who the main characters are without reading the story, but it's likely to be some kids with big dreams and a sense of adventure.
I don't know for sure as I'm not familiar with this story, but it could be an astronaut as one of the main characters.
It might be a whole class of kids. Their teacher has been teaching them about space, and they all get excited and imagine themselves traveling to the moon and back as a team. Each kid could have their own special role in this adventure, like the navigator, the engineer who fixes their pretend spaceship, or the one who communicates with the moon creatures.
Since I don't know the specific story, it could be a truck driver and his or her lover. The truck driver would be one of the main characters as the truck is involved, and the lover would be the person to whom the 'love you to the moon and back' sentiment is directed.
I'm not sure as I haven't read the novel. But usually, there would be a protagonist who embarks on the journey to the moon goddess. There might also be some kind of guide or helper character.
In a story about the scientific exploration of the moon, the main characters would be the scientists behind the missions, the engineers who built the spacecraft, and the astronauts who carried out the exploration.
I don't know for sure, but it could be a group of young friends who are really curious about the moon.
The main characters are Usagi Tsukino / Sailor Moon, Ami Mizuno / Sailor Mercury, Rei Hino / Sailor Mars, Makoto Kino / Sailor Jupiter, and Minako Aino / Sailor Venus. Also, Tuxedo Mask plays a crucial role.
The main characters are the boy and the moon. Obviously, the boy is a key figure as the story likely revolves around his experiences, thoughts, or feelings related to the moon.
The main characters in 'To the Moon' are Dr. Eva Rosalene and Dr. Neil Watts. They are the ones who enter people's memories to rewrite them. And there's also Johnny, an old man whose memories they are exploring, and River, who has a very important relationship with Johnny.