Terrifying werewolf Fenrir Greyback was portrayed by ... and former student of Professor Horace Slughorn in Harry Potter and the Half-Blood Prince. He died of a brain tumor in 2021 at age 54.

During Harry Potter's sixth year at Hogwarts, he finds a book that once belonged to the mysterious Half-Blood Prince that earns him the respect of his new Potions professor Horace Slughorn.

Harry Potter and the Half-Blood Prince includes Dumbledore’s ... In the Harry Potter books, Draco unleashes the Death Eaters and Fenrir Greyback on the school before Harry and Dumbledore arrive ...

During Harry Potter's sixth year at Hogwarts, he finds a book that once belonged to the mysterious Half-Blood Prince that earns him the respect of his new Potions professor Horace Slughorn.

The Harry Potter films are a fantasy series based on the series of seven Harry Potter novels by British writer J. K. Rowling.