Sian Barbara Allen was an American actress who mainly appeared on television throughout the 1970s. A native of Reading, Pennsylvania, Allen studied at the Pasadena Playhouse before appearing in her first screen role on the series O'Hara, U.S. Treasury in 1971. She went on to appear in numerous television series in the ensuing years, including recurring appearances on The Waltons, Gunsmoke, and Ironside.
