This The Mentalist screencap contains
academische toga, academische robe, robe rechter, academische gown, academische gewaad, rechter gewaad, fedora, vilten hoed, homburg, cowboyhoed, trilby, fedora met vilten hoed, and stetson.
There might also be
snap rand hoed, module rand hoed, vierdeukenhoed, campagne hoed, bever, and castor.