Maybe there is a visitor. A person who comes to the lighthouse for some reason, perhaps to seek shelter from a storm or on a mission to explore. This visitor can bring new perspectives and events into the story.
There could be the lighthouse keeper. He is the most likely main character as he is the one who lives in the lighthouse and has a direct connection to the place. His experiences and actions would likely drive the story.
There might also be a ghost or a supernatural entity. In some lighthouse stories, there are often tales of ghosts haunting the lighthouse. If this is the case in 'the lighthouse short story', it would be a main character that adds an element of the supernatural and fear to the plot.
There might be some passing sailors that could be considered important characters too. They are the ones the lighthouse keeper is guiding, so they play a role in the story even if they don't have a large amount of on - page time. Their presence is what gives the keeper his purpose.
The main characters are usually the lighthouse keepers. They are the ones who take care of the lighthouse and its operations.
I'm not sure as we don't have much information, but it could be the lighthouse keeper as a main character.
I don't know for sure as the story isn't specified. But it could be the lighthouse keeper as a main character. He might be the one who first encounters the monster.
The main characters are most likely the lighthouse keepers. They are the ones who live in the lighthouse and experience the Christmas in that unique setting. There may be an older, more experienced keeper and a younger one. The older one could be passing on the Christmas traditions of the lighthouse to the younger one. There might also be a character who is in charge of supplies and how they manage to get something special for Christmas.
In 'the little red lighthouse story', the most prominent character is surely the little red lighthouse. It's the focus of the story. There may be other elements that play supporting roles, like the people who built it or maintain it, or the seagulls that might fly around it. But the lighthouse is the main character that holds the story together, with its unique presence and the role it plays in the setting.
I'm not sure without more details. But likely the lighthouse keepers would be main characters. They are the ones who operate and live in the lighthouse.
I don't know for sure. But it could be the lighthouse keeper. They are usually central to stories about lighthouses.
The main theme could be isolation. In many lighthouse - related stories, the lighthouse keepers are often isolated from the mainland and society. They face solitude and have to deal with their own thoughts and emotions in that confined space.
Most likely the lighthouse keeper is one of the main characters. Maybe there could be some seagulls or other animals as minor characters if they interact with the keeper during the picnic.