I don't know, as we have no information about the story. It could be a scientist if it's a science - fiction story about time - traveling messages.
I'm not sure specifically as the details of this story are not given. It could be about various things like time travel, a message sent through time via some supernatural means, or perhaps a story where a character discovers an old message that has significance from a different era.
Well, if we think about typical short story structures, there could be a young protagonist. This young character might be curious about the Pigman and his message. There could also be an older figure, perhaps a mentor - like character, who helps the protagonist understand the significance of the Pigman's message. And of course, the Pigman is a central character. His character might be mysterious, with his own backstory that gradually unfolds as the story is told.
In the 'A Message from the Sea' full story, there may be a protagonist who is the one directly involved with the message from the sea. This could be a curious individual, perhaps a young person new to the coastal area. There may also be supporting characters such as the person's family members who react to their discovery. Additionally, there could be some kind of antagonist, maybe a person who doesn't want the message to be fully understood or who has their own motives related to the mystery of the sea.
Since I don't know the exact 'the secret message story', it's hard to say. But usually, there would be a person who discovers the message. There might also be a helper, like a wise old man or a clever friend who assists in understanding the message.
I don't know as the title 'the message scary story' doesn't give away the characters. They could be ordinary people like a young girl who stumbles upon the message, or a group of friends who are investigating it.
I'm not sure specifically as I haven't read this exact story yet. But it could be some fantastical creatures or ordinary people put in extraordinary situations, which are common in Harris Burdick's works.
The main character is the unnamed woman. She is the central figure whose emotions and experiences drive the story. The other important character is the man she is in love with, though he is somewhat of a more shadowy figure in terms of understanding her deep love for him.
There's probably a Cinderella - like character. This would be the main protagonist who endures hardships and eventually gets a happy ending.
I don't know as I haven't read the story, but it could be the person receiving the message, the sender (if revealed), and maybe some friends or family members involved in the events related to the message.
The main character is the person who is tasked with delivering the message to Garcia. I'm not sure if there are other characters that are really emphasized as much in the story.