There's no way to tell without more details. It might be a wizard and a little girl if it's a magical story about the big egg. Or it could be a group of animals like a hen, a fox, and a rabbit if it's an animal - based story.
Since I don't know the exact 'the big egg story', I can't say for sure. It could be a farmer if it's a story about finding an egg on a farm. Maybe some children if it's a children - centered story.
Given the lack of information about this particular 'the big egg story', the main characters could be many things. If it's a story set in a prehistoric world, perhaps dinosaurs were the main characters and the big egg was a dinosaur egg. If it's a modern - day urban story, it could be a scientist who discovers the big egg and the people around him who are either skeptical or supportive of his discovery. It could also be a story where the main character is a lonely person who finds the big egg and through taking care of it, finds purpose in their life.
The main characters are Little Grunt and the big egg. Little Grunt is likely the one who drives the action in the story. He is the one who will interact with the big egg, and the big egg is this mysterious object that Little Grunt has to deal with. Their relationship and what happens between them form the core of the story.
I'm not sure without more context. It could be a mother bird if it's a story about a bird laying and protecting an egg.
Since I don't have detailed knowledge of 'the egg short story', the main characters could be various. It could be a group of adventurers who stumble upon a mysterious egg during their travels. One of them might be the leader, another the curious one always asking questions about the egg, and there could be a cautious member who is worried about the consequences of dealing with the egg.
I'm not sure as the information is not given. But usually in a short story, the main characters are the ones who drive the plot forward and are most involved with the central element, which in this case is the egg.
I'm not sure specifically as there could be many stories named 'the big egg story'. It might be about a very large egg that was found, or perhaps an egg that hatched something extraordinary.
The main characters are the boy and the dragon that hatches from the egg.
Well, in this short story, perhaps the main character is a simple farmer who accidentally finds the dragon egg in his field. There could also be a group of villagers who are initially afraid of the egg but later come to support the farmer in protecting it. And then there could be a dark sorcerer who hears about the egg and tries to use it for his own evil plans, making him a key antagonist in the story.
As I haven't read the 'the sacrificial egg short story', it's difficult to say. There could be a young child who discovers the significance of the sacrificial egg, or an elder in a village who is in charge of the ritual involving the egg. There might also be other characters who oppose the sacrifice of the egg, creating a conflict in the story.
I'm not sure specifically as I haven't read the exact story. But it could be a scientist who discovers the special egg.
Since I don't know the exact story, I can only guess. There must be the Purple Star Egg Dragon itself. Maybe there's a young hero who discovers the egg or befriends the dragon.