One of Harry's roommates and a fellow fifth year Gryffindor student. Seamus and Harry begin the year on the wrong foot, as Seamus's mother tried to forbid him from returning to Hogwarts—she believes Harry is lying. Harry and Seamus refuse to speak to each other for much of the novel, but after Harry's interview in The Quibbler, Seamus affirms his loyalty to Harry and joins Dumbledore's Army.