This Doctor Who screencap contains
fedora, vilten hoed, homburg, cowboyhoed, trilby, fedora met vilten hoed, stetson, snap rand hoed, module rand hoed, schipper, leghorn, panama, hoed, zeeman, skimmer, strooien hoed, livorno, panama hoed, matroos, and stro hoed.
There might also be
pak, sombrero, merg hoed, merg helm, zon helm, tropenhelm, topi, merg hoed met merg helm, and topee.