Harry potter is famous, pretty much because he survived you-know-who when he was a baby. He's sarcastic, funny, and slightly impulsive. He has black hair, a lightning bold scar on his forehead, and round glasses.
Ron weasly is from a middle class wizarding family, and is one of Harry's best friends. He's funny, and nice to be around.. But he won't let you making fun of his friends.
Hermione is from a muggle (non-wizarding family) and is top of every class, she loves books, and can be a bit scary