In this file photo, Susan Schneider and Robin Williams attend The Comedy Awards 2012, April 28, 2012 in New York. The celebrated actor and comedian committed suicide on Aug. 11, 2014.

Robin, who died in August 2014 at the age of 63, would have turned 74. "Every year, this season arrives with gravity," Williams, 42, wrote on Instagram alongside a throwback photo of Robin.

Robin Williams, circa 1999. Harry Langdon/Getty Williams' career took off in the 1980s when he costarred in the ABC sitcom Mork & Mindy as an alien from the planet Ork. He made his film debut in ...