Jack’s love of authority and violence are intimately connected, as both enable him to feel powerful and exalted. By the end of the novel, Jack has learned to use the boys’ fear of the beast to control their behavior—a reminder of how religion and superstition can be manipulated as instruments of power. The extent to which he controls his tribe can be seen when he beats one of his tribe member and the other boys do not object. Jack is used by Golding to represent fascism.
Piggy is a tragic figure, the same age as Ralph and by all accounts considerably smarter yet his physical deficiencies separate him from the others. He is vilified, espacially by Jack, for not helping, whining and generally being unhelpful but he is the intelligence behind the democracy that is set up. His death signals the final end of the democracy and his 'empty-head' as it splits on the rocks the end of rational thought.
Simon is a calm, passive boy who claims no leadership or intelligence, but shows a wisdom beyond his years as he is the only character to realise that the beast is imaginary. He is sometimes said to be the only boy in the novel with natural good in him, the others having only have goodness imprinted on to them by society. Simon also holds the key to their salvation, the knowledge, that they hear from him, that the beast is no more than a dead man. He is said to be the "Jesus figure" in the book.
Roger follows the group and acts on their behalf. He becomes Jack's right hand man. While Jack is more of a Hitler Figure, Roger seems to become more like a Himmler figure, in charge of creating fear, without being conscious of the immorality of his actions. He represents clearly the example of humans and their destruction of each other. He also represents sadism, bloodlust and cruelty to the extreme. He is the only character to knowingly kill someone on his own i.e. Piggy (the rest were influenced by mob psychology).
Sam and Eric or Samneric are identical twins, while...