Harry Potter and the Goblet of Fire
Professor Pomona Sprout
House: Head of Hufflepuff
Professor Sprout shows up only briefly in Goblet of Fire. She continues to teach Herbology, and she and Neville Longbottom are close because Neville has a real green thumb. Professor Sprout also is left with the Diggorys after Cedric's death, since, as the head of his house, she knew the boy well.