Since we don't have details about 'the little moon story', it's difficult to determine the main characters accurately. However, if it's a story set in space, other possible main characters could be stars, planets or little space creatures that interact with the little moon.
There are several key characters in the My Little Pony Nightmare Moon story. Firstly, Twilight Sparkle, a magic - using pony with a thirst for knowledge. Her friends are crucial too. Pinkie Pie, the fun - loving and party - planning pony; Rainbow Dash, the fast - flying and brave one; Applejack, the hard - working and honest pony; Rarity, the fashionable and creative pony; Fluttershy, the shy but kind - hearted pony. And then there are Princess Celestia and Nightmare Moon (Princess Luna). Celestia has a connection to the whole situation as Luna's sister, and Nightmare Moon is the antagonist that the others must face.
The main characters are, of course, the Sun and the Moon. They are often personified with different personalities, like the Sun being bold and the Moon being more subdued.
As I don't know the specific 'the moon man story', it's difficult to say for sure. But if it's a common type of story about a man going to the moon, the main character would be the man himself. There might also be characters on Earth like his family, friends or colleagues who support his mission or are affected by his departure.
The main character is the little bear. However, there could be other characters like a wise old owl back on Earth that gives the bear advice before it sets off to the moon. And on the moon, there may be little moon bugs or other fantastical beings that the bear interacts with.
The main characters are the sun, the moon and the stars.
As the title suggests, the central characters would be the naughty moon children. There could be a leader among them, a particularly mischievous child who often comes up with the naughty ideas. And perhaps there are some wise old moon people who try to guide these naughty children. There might also be some friendly lunar pets that are part of the story and get caught up in the children's naughty adventures.
Maybe there are characters like an eccentric astronomer who is obsessed with calculating the exact distance to the moon. And there could also be a sidekick, perhaps a young apprentice who is learning from the astronomer and has different ideas about how to approach the problem. There might also be some antagonists, like people who think this whole pursuit is a waste of time and resources.
The main character is the little rabbit. There are also some other characters mentioned in a way like the kittens that the rabbit says goodnight to.
I'm not sure as I don't know the story. But they could be a person who has a deep emotional connection to the moon, like an astronomer or a dreamer.
I'm not sure specifically what the 'little moon story' is as there could be many stories with this name. It might be a story about a little moon, perhaps its adventures in the sky or its relationship with other celestial bodies.