Ericson was born in Salt Lake City[1] and was named for Devon, England.
[2] Her mother, Audrey Planty,[3] won British ice-skating championships and toured with the Ice Follies in the United States.
[4] She attended the school of performing arts at United States International University in San Diego and later studied at its satellite campus at Ashdown Park, England.
She later portrayed Betsy O'Neal in The Chisholms,[6] Rachel Peters in Family,[6]: 324 and Rebecca Bryan in Young Dan'l Boone.
[6]: 1206 She guested on such series as Barnaby Jones, Police Story, Starsky & Hutch, The Streets of San Francisco, Three's Company, Magnum, P.I., Buck Rogers in the 25th Century, Knight Rider, Airwolf, The A-Team, and The Awakening Land, as well as the miniseries and the miniseries Eleanor and Franklin and Studs Lonigan.