Protagonist

Protagonist
The protagonist of a story is the main character or one of the major characters in a drama, movie, novel, or other fictional text. Being the protagonist honestly means that they are the one who leads the story. Their ideas or focus is on the main story and the story follows their ideas and actions.

Example
In the Lord of the Flies, the protagonist would be Ralph, Jack, or maybe even Piggy depending on your point of view on the story. From most people's point of View, Ralph is the main character, so his ideas are leading the story.

Quote from the book
“Him with the shell.” “Ralph! Ralph!” “Let him be chief with the trumpet-thing.” Ralph raised a hand for silence. “All right. Who wants Jack for chief?” With dreary obedience the choir raised their hands. “Who wants me?” Every hand outside the choir except Piggy’s was raised immediately. Then Piggy, too, raised his hand grudgingly into the air. Ralph counted. “I’m chief then.” The circle of boys broke into applause. Even the choir applauded; and the freckles on Jack’s face disappeared under a blush of mortification. Taken from Page 29 of the online book.