R.I.P. Sian Barbara Allen: ‘The Waltons’ And ‘Columbo’ Actress Dead At 78 admin 3 days ago Headlines Comments Off on R.I.P. Sian Barbara Allen: ‘The Waltons’ And ‘Columbo’ Actress Dead At 78 0 Views Allen had a prolific acting career throughout the ’70s and ’80s. Share Facebook Twitter Stumbleupon LinkedIn Pinterest