". In this Nov. 15, 1997 file photo, Robin Williams extends his head between curtains in a New York hotel. Williams, a brilliant shapeshifter who could channel his frenetic energy into delightful comic characters like ""Mrs. Doubtfire\"" or harness it into richly nuanced work like his Oscar-winning turn in \""Good Will Hunting,\"" died Monday, August 11, 2014.  (AP Photo/Jim Cooper, File)"