Blue is the main character, of course. She's a cute and curious little pup who drives the story forward with her actions and adventures.
There's also Steve, who is often by Blue's side. He participates in the activities with Blue and helps her in her adventures. His presence adds to the story's charm.
Blue is one of the main characters, of course. He is always in the center of the adventures.
There could be a variety of main characters in the 'big blue train story'. It might be a young adventurer who boards the big blue train to explore new places. Or perhaps an old, wise railway worker who has been taking care of the train for years. Also, there could be a group of friends traveling together on the train, and they all play important roles in the story.
The main characters in the 'big blue ox story' are the big blue ox, usually named Babe, and Paul Bunyan. Paul Bunyan was a larger - than - life logger, and his big blue ox was his trusty sidekick.
I don't know for sure since I don't have much information about this 'the big blue true story'. It could be some oceanographers if it's related to the ocean.
If it's related to the movie, the main characters are Jacques and Enzo. They are central to the story as they are the ones competing in free - diving.
I don't know as I haven't read the story. It could be a person named Blue, or it could be a group of people who are somehow related to the big blue element in the story.
Since I don't know the exact 'the big blue shirt story', I can't say for sure who the main characters are. But it could be the person who owns the big blue shirt, perhaps a friend or family member who is associated with the shirt in some way.
Since I don't know the exact story, but likely the big blue ox is one of the main characters. There might also be a human character who interacts with the ox, like a shepherd or a farmer.
There could be fishermen as main characters in the 'in the big blue sea story'. They might be out at sea, facing the challenges of the big blue sea, and their stories of survival and discovery could be the focus. Or it could be a group of pirates who are searching for treasures in the big blue sea.
Since there is no detail about this story, it's hard to tell. But in a typical train - related story, there could be a conductor as a main character. He or she might be responsible for the smooth running of the big blue train. There could also be a young adventurer among the passengers who has an exciting story of his own related to the train's journey.