This Skulduggery Pleasant and crew foto contains
filzhut, homburg, stetson, trilby, fedora, and stetson trilby.
There might also be
porkpie, porkpie hut, kleid hut, hut hoch, opernhut, zylinderhut, ofenrohr, deckel, biber, kleiderhut, hut, seidenhut, topper, kleid, hi-hat, opera hut, zylinder, boater, leghorn, panama, panamahut, seemann, skimmer, hut stroh, bootsfahrer, bein, strohhut, livorno, and panama-hut.