Since the title just says'man in motion story', it's hard to tell exactly who the main character is. It could be an ordinary man with an extraordinary journey, or it could be a specific type of man like a salesman who is always on the move for work.
The 'man in motion story' could be about a man on a journey, perhaps a physical journey like traveling across different landscapes. It might also be a metaphorical journey of self - discovery, where the man is in motion towards understanding himself better, growing and changing as he moves through various experiences in life.
The main character is Ralphie. His mother and father are also important characters, along with his little brother. And there's the school bully, Scut Farkus, who causes trouble for Ralphie.
The main characters are Captain Kirk, Mr. Spock, Dr. McCoy, and others from the Enterprise crew.
As we don't know the details of 'the man story', the main character is simply 'the man' in question.
Princess Leia is also a main character. She's strong - willed and a key part of the Rebel Alliance. Han Solo is another important one. His roguish charm comes through even in Lego form. Chewbacca, his furry sidekick, is always there too, adding his own unique presence to the story with his growls and loyalty.
Since I don't know the exact 'lamppost man story', the main character is probably the man who is associated with the lamppost in some way.
Since we don't really know the specific 'hatchet man story', it's hard to say who the main character is. It could be the hatchet man himself, if the story focuses on his actions and motives.
The main character in the 'Lawnmower Man Story' is probably the man who mows the lawns. He is the central figure around whom the story revolves. Whether he's a simple working - class guy just trying to make a living or a more complex character with a backstory and dreams related to his lawnmowing job, he is the one the story is mostly about.
The main character in the 'whistling man story' is most probably the whistling man. However, depending on the nature of the story, there could be other important characters as well. For instance, if it's a story about how the whistling man's whistling affects those around him, there could be people in the community where he lives who are also important characters in the story. They might be initially annoyed by his whistling, or they might be intrigued and become his friends or followers. The whistling man could also have a backstory that involves other characters, like a mentor who taught him how to whistle in a special way or an antagonist who tries to stop him from whistling for some reason.
Since we don't know the specific 'a drowned man story', the main character is most likely the drowned man himself. He would be the central figure around whom the events of the story revolve.