April 23, 2017 1:20 am ‘Happy Days' Star Erin Moran Dies at 56 Erin Moran, who played Joanie Cunningham on the shows “Happy Days” and “Joanie Loves Chachi,” has died at the age of 56. Lolita Lopez reports for the NBC4 News at 11 on Saturday, April 22, 2017. US & World Videos 2:28 King Charles returns to public duties amid cancer diagnosis 3:10 Nicole Kidman gushes over family's support at AFI honor 1:39 Benny Blanco talks falling in love with Selena Gomez 18:17 Christian Slater ate 12 Pop-Tarts and got a massive sugar high for ‘Unfrosted' 3:26 Zendaya weighs in on ‘Challengers' love triangle: Art vs. Patrick?