Hortense Cooper was a Ravenclaw student at Hogwarts School of Witchcraft and Wizardry in the 1990s. She told Harry Potter that he could cast Reducto on suits of armour in order to find Stink Pellets during the 1996–1997 school year. She may be related to Buckley Cooper.
Appearances
- Harry Potter and the Half-Blood Prince (video game) (Nintendo DS version only)