Yet, while every Harry Potter fan knows that Lupin is a werewolf, not many know how he became one. Lupin paused and then said, "It was Greyback who bit me." "What?" said Harry, astonished.

Terrifying werewolf Fenrir Greyback was portrayed by actor Dave Legeno, who passed away from heatstroke while hiking in 2014. He was 50 years old. In the first Harry Potter film, Deadman played ...