Simon is one of the choir boys, he is shy and prone to fainting. He has a natural sense of good in him. He is connected to nature and likes to go away at night to get in his nature spot. Simon is one of the only boys that doesn't lose his sense of morality, and he represents good in the story.
Rodger is a dark complected older boy. He is cruel to all of the littlnuns and throws rocks at Henry but never hits him. He is very secretive and mean. In the end, he kills Piggy. He was a complete savage!
Sam and Eric are twins who do everything together; they are usually referred to as one person. They are always on Ralph's side and choose to be with him when the rest of the big boys leave. At the very end they are captured by Jack and held hostage but still try to help Ralph while he is being hunted.