↳ jerome valeska aka the joker.
—sociopath as a symptom of narcissistic personality disorder (npd).
↳ jonathan crane aka scarecrow.
—phobia as a type of anxiety disorder.
↳ tabitha galavan aka tigress.
—sadistic personality disorder (spd).
↳ harvey dent aka two face.
—split personality or dissociative identity disorder (did).
↳ edward nygma aka the riddler.
—obsessive–compulsive disorder (ocd).
↳ oswald cobblepot aka the penguin.
↳ victor zsasz aka zsasz
—cold-blooded as a symptom of antisocial personality disorder (aspd).
↳ ivy “pamela” pepper aka poison ivy
—manipulative as a symptom of histrionic personality disorder (hpd).
↳ nathaniel barnes aka the executioner.
—intermittent explosive disorder (ied).
↳ jervis tetch aka mad hatter.
—paranoid schizophrenia or schizophrenia, paranoid type (spt).