Ronald Bilius Weasley is a fictional character in the
Harry Potter series of novels by J. K. Rowling. He is introduced in
Harry Potter and the Philosopher's Stone as a first-year student on his way to the wizarding school Hogwarts. During the school year, Ron befriends Harry Potter and Hermione Granger. Being the only member of the trio who was raised in wizarding society, he provides insight into wizarding customs and traditions. Along with Harry and Hermione, he is a member of Gryffindor House at Hogwarts and is present for most of the action throughout the series. Ron is portrayed by Rupert Grint in all eight
Harry Potter films.