This Harry Potter photo contains
sombrero, boater, leghorn, panama, panama hat, sailor, skimmer, straw hat, fedora, felt hat, homburg, stetson, and trilby.
There might also be
campaign hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, beaver, porkpie, and porkpie hat.
Scarlett played Pansy Parkinson and mean witch in Slytherin who is romantically linked to Draco Malfoy. In the book and film she often tormented Harry Potter and his friends.