This Doctor Who screencap contains
filzhut, homburg, stetson, trilby, fedora, stetson trilby, snap randhut, schnappen sie randhut, snap krempe hut, kampagne hut, and kampagnenhut.
There might also be
boater, leghorn, panama, panamahut, seemann, skimmer, hut stroh, bootsfahrer, bein, strohhut, livorno, panama-hut, porkpie, porkpie hut, biber, rizinus, rolle, and castor.