This doktor na screencap might contain
Fedora, nadama sumbrero, Homburg, Stetson, trilby, snap brim hat, boater, leghorn, panama, panama sumbrero, mandaragat, espumadera, and dayami sumbrero.
I've been watching a lot of "Doctor Who" lately and saw "The Dark Knight" a few times, and it seemed like The Doctor probably wouldn't put up with Batman for too long, and the Joker even less.