Mr. Lupin is the father of Remus Lupin. At some point, Mr. Lupin somehow insulted the werewolf Fenrir Greyback, which Greyback punished him for by biting his son and infecting him. Along with his wife, he worried that his son would not be able to attend Hogwarts School of Witchcraft and Wizardry due to his lycanthropy until Albus Dumbledore made a special provision for him.
Appearances
- Harry Potter and the Prisoner of Azkaban (Mentioned only)