Mary McDonough

Mary McDonough is an actor best known for playing Erin Walton on The Waltons and related media.
In 2013, McDonough appeared with Cookie Monster (and David Rudman) at the Daytime Creative Arts Emmys ceremony.
McDonough's other television credits include a recurring role on The New Adventures of Old Christine and guest parts on The Love Boat, ER, Diagnosis Murder, Ally McBeal, Walker, Texas Ranger, The West Wing, Will & Grace, and Boston Legal.
==External links==
*Offical website
*IMDb
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Category:Celebrities