Thread:Wikification/@comment-35677406-20180602214907/@comment-26833018-20180602222249

Joker has been portrayed with various mental disorders over the years, particularly in the comics, and in a couple of them he has shown signs of personality disorder. There has never been any proof that he fakes what he has. it's even lead to the whole "Super Sanity" theory in the Arkham Asylum graphic novel which says he must rebuild himself everyday and adapt to his many disorders differently in order to get through life, which could effect his personality. He doesn't just pick out what suits him at the time.