PROTAGONIST
The main character in the story "Charles" is a young boy named Laurie.
The main character, or the central/primary character of a story is called the protagonist. It comes from the Greek word "protagonistes", which means "one who plays the first part, chief actor". The character that is the opponent of the protagonist is called the antagonist. The antagonist represents or creates and obstacle that the protagonist must overcome.
The main character's name is Corvo Attano.
There really is no name for that person. It's just a character that makes life miserable for the main character. She/he doesn't really have a name at all.
The main characters in Love Story by Erich Segal are Oliver Barett IV and Jenny Cavilleri.The main character in Love Story by Jennifer Echols is Erin Blackwell.
Protagonist
Since the main character is usually referred to as the protagonist, the title you're probably looking for is antagonist.
The fat man is a main character of the story is because the story revolves around him and his wife. The funny thing is the fat man doesn't even have a name in the story.
Sam
The story is actually called pinocchio its self.
The protagonist is the main character of the story. Everything evolves around him/her. Usually, in a story, the protagonist wants to reach a goal, but many obstacles are in his path to reach this goal. These obstacles can be natural (a storm, a tornado) or human. The human obstacles doesn't want that the protagonist reach his/her goal. The human obstacles are called "Antagonist". Other characters in a story are called minor characters. These characters can help the protagonist to reach his/her goal, or be simply "decorations" and do not interact with the protagonist. There can be more than one protagonist or antagonist in a story.
What is the name of the main character?