Mary Elizabeth Mcdonough – Erin Walton
Credit: Al.com | Foxnews.com
McDonough played the part of Erin, the second oldest Walton daughter. Since the show ended in 1981, McDonough’s career continued to run hot. She has appeared on a number of TV shows and in several movies. Her more prominent roles include ER, The Love Boat, and The New Adventurers of Old Christine. Most recently, she lit up the big screen in the 2014 movie The Costume Shop. This dedicated actress has managed an amazing career despite her health issues: McDonough unfortunately suffers from lupus, an immune disorder that occasionally flares up and causes her health issues.