Heather Menzies-Urich, who played Louisa Von Trapp in the beloved movie classic, The Sound of Music, passed away Dec. 24, 2017 at the age of 68 in Frankford, Ontario. She had been diagnosed with brain cancer four weeks earlier. The Toronto-born actress was married to American actor Robert Urich, who predeceased her in 2002. They had three children together. She is pictured second from the right in this still from The Sound of Music.