Actor Derek Waring who played Shardovan in Castrovalva died of cancer yesterday at 79.
He was also well-known for his roles in Z Cars and Moody and Pegg.
Other TV shows Waring appeared in were The Professionals, Dixon of Dock Green and The Adventures of Sir Lancelot, which starred William Russell - later to become Doctor Whocompanion Ian Chesterton - in the title role.
More details of Waring's life and career are online at Yahoo News.
UPDATE (22 Feb): His death has subsequently been reported at BBC News, where there is also a detailed biography plus tribute. The Guardian carries an obituary.
Pictured below is Waring in character in Castrovalva, which was recently released on DVD in the UK as part of the New Beginnings box set. Click on the image for a larger version.