This Doctor Who photo contains
fedora, felt hat, homburg, stetson, and trilby.
There might also be
boater, leghorn, panama, panama hat, sailor, skimmer, straw hat, campaign hat, dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper, and beaver.
Basically the story of his three companions, Rose, Martha, and Donna, and how they can never stay with him long, and the Doctor has to let them go. Made by zcatz.