As we don't have details about this 'friend at midnight story', it's hard to name the main characters. However, they are likely to be friends, perhaps a pair of friends with different personalities. One might be more adventurous and the other more cautious, and their actions and interactions at midnight form the core of the story.
The main characters are the man who comes to his friend's house at midnight asking for bread and the friend who is initially reluctant to get up and give it.
I'm not entirely sure without more context, but it's likely the midnight - born children themselves are main characters.
As we have no details about the 'the midnight caller old story', it's difficult to determine the main characters. However, common in such stories would be the caller, who is the instigator of the events that follow. There might also be a character on the receiving end of the call, who could be the protagonist that has to deal with whatever the call brings. There could also be other secondary characters depending on how the story develops, like family members or friends of the person who gets the call, who might get involved in the situation later.
Since I don't know the exact 'Midnight Evil Game Story', it could be a brave hero as one of the main characters. This hero might be on a quest to defeat the evil in the game.
Since I don't know the exact story, it could be the children themselves. They might be a group of kids from a small Arctic or Antarctic village.
I'm not sure specifically as I don't know the exact 'Midnight Sun Book Story', but they could be a local inhabitant who is used to the midnight sun, and a newcomer who is amazed by it.
Since I don't know the details of this '6 minutes to midnight true story', it's difficult to say. However, it might involve heroes or leaders who played crucial roles in whatever situation was being counted down to 6 minutes to midnight. It could also include those who were affected by the events and had to make tough decisions in those final minutes.
I don't know the specific main characters as I haven't studied this story. Maybe it has characters like local residents, law enforcement officers, or people who are somehow connected to the switchgrass area.
In the 'Midnight Mass Short Story', the main characters could include the choir members. They add to the atmosphere of the mass with their singing. There might also be a character who is a skeptic at first but then has a transformation during the mass. Additionally, there could be a family, with parents and children, all having different reactions and experiences during the midnight mass.
I'm not sure as I haven't read the specific 'be a friend story'. It could be two kids who become friends at school.