Is he a buffoon? A mastermind? Remorseful or just out to save his own neck? It's been more than two years since "Harry Potter and the Half-Blood Prince," but hard-core fans are still debating the motivations of Horace Slughorn, the brand-new potions master at Hogwarts School of Witchcraft and Wizardry.
Don't worry, so is Harry Potter himself.
"Most of the time he's gonna be very funny," star Daniel Radcliffe told MTV News of Slughorn's portrayal in the upcoming movie adaptation. "But then you will really see the dark side of him." Read more...