Heath had revealed to The New York Times that he had been taking Ambien which treats short term insomnia, following the production of ‘I’m Not There’ & ‘The Dark Knight’. He spoke of his character the joker as a "psychopathic, mass-murdering, schizophrenic clown with zero empathy” and the role and work schedule had played a toll on his mind. In his personal life, Heath or Heathcliff was painfully shy. His hobbies included surfing, poetry, chess, photography, and directing mainly solo forms of art with a high level on concentration. At a young age he turned down a career as a field hockey player to pursue a career as a performer and traveled from Perth to Sydney with no formal training and nothing but .69 cents in his pocket.