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
biber, rizinus, rolle, castor, porkpie, porkpie hut, kleid hut, hut hoch, opernhut, zylinderhut, ofenrohr, deckel, biber, kleiderhut, hut, seidenhut, topper, kleid, hi-hat, opera hut, and zylinder.