I don't know as I haven't read it, but I assume the main characters would be the giant's children themselves.
Without having read 'the fall of the gianyts children story', it's hard to say precisely. However, if we think about typical stories, it could be that the children of giants are living in a world that is changing in ways they can't adapt to. Their large size and the expectations that come with being giant - like strength and dominance - may no longer serve them. There could be new forces at play, such as magic that overpowers them, or a shift in the social order that undermines their position. This could all lead to their fall, whether it's a literal fall from grace or a more metaphorical downfall in terms of their way of life.
Since I don't know the exact 'free fall children story', it could be the children themselves as the main characters. There might also be some adults or other beings that play important roles, like a magical creature that tries to save the children from the free fall if it's a fantasy story.
Since I don't know the exact 'free fall story', I can't say for sure who the main characters are. It could be an adventurer who undertakes a free - fall related activity, like a base jumper.
As I'm not familiar with 'the fall animated story', the main characters could be a diverse group. Maybe there's a young adventurer who is the protagonist, and then there are older, wiser characters who guide them. There could also be antagonists, like an evil wizard or a powerful monster that the main characters have to face. The story would then revolve around the interactions and conflicts between these different characters.
I'm not sure as the specific 'in the fall' short story isn't well - defined here. But generally, main characters are often those whose actions drive the plot forward. They could be a protagonist who is facing some sort of conflict or a group of friends whose relationships are central to the story.
Since I don't know the details of the 'free fall 2014 story', I can't say for sure who the main characters are. It could be an individual who is experiencing the free fall, like a skydiver named John or a scientist named Dr. Smith if it's related to a scientific study.
There are Tristan, who is impulsive and full of life. Alfred, his more restrained brother. Susannah, the woman they both love. Also, their father, Colonel Ludlow, plays a significant role in shaping their lives and the family dynamic. There are other characters too, but these are the main ones around which the story revolves.
Perhaps there is a lonely child who then meets some magical creatures. These magical creatures become his or her new friends. The child and the magical friends then have a series of interesting interactions that drive the story forward.
It depends on the specific 'for the children story'. It could be a brave little boy or a kind - hearted girl.
In this story, Icarus and Daedalus are the key figures. Daedalus, with his great skill, devised a plan to escape using wings. Icarus, on the other hand, was the one who, despite his father's warnings, flew too close to the sun. Their relationship as father and son, and their different reactions during the flight, are central to the story.