Who are the main characters in 'Mr Harris and the Night Train' full story?
The title indicates that Mr Harris is a main character. Other potential main characters could be those who directly impact Mr Harris's journey on the night train. It could be a mysterious stranger who boards the train at a certain stop and makes Mr Harris question his own beliefs or motives. There might also be a railway employee, like a porter, who helps Mr Harris in some way or whose actions influence the course of Mr Harris's journey. And of course, there could be other passengers with their own unique personalities and stories that intertwine with Mr Harris's during the night - time travel on the train.
Based on just the title, Mr Harris is clearly a main character. There may be other characters like fellow passengers. Maybe there's an old lady who shares her life stories with Mr Harris during the night train journey. Or there could be a young adventurer who is also on the train and they both get into some sort of adventure together. It's also possible that the train driver has some part to play in the story, even if it's just in the background creating the atmosphere of the moving train.