Looks Back at Robin Williams in 1990An unknowable void remains between Robin Williams the man and Robin Williams the myth. Various deep dives have pieced some of the puzzle together, including Dave Itzkoff's definitive 2018 biography Robin and the HBO documentary Robin Williams: Come Inside My Mind. John Mulaney, also known for endearingly mining his own personal struggles for humor, did the honors. "People like to theorize that comedy all comes from a place of pain and sadness," Mulaney said in his introduction. "And people like to talk about comedians as if we do what we do because of some inner darkness.