In 2006 he appeared as a guest star in the "Doctor Who" spin-off series "Torchwood", in the episode "Ghost Machine". In 2012, Thomas returned to the role of "Roj Blake" in Big Finish Productions' "Blake's 7: The Liberator Chronicles", a series of dramatic readings which take place during Series One before the death of Olag Gan. Thomas stars as "Blake" in "Counterfeit" by Peter Anghelides and "False Positive" by Eddie Robson. In 2013 he appeared as Brother Cadfael in Middle Ground Theatre Company's adaption of "The Virgin in the Ice" by Ellis Peters. He was twice nominated for a BAFTA, for his performances in "Stocker's Copper" (BBC "Play for Today") (1972) and "Morgan's Boy" (1984). "Morgan's Boy" was his favourite television role, but it was "Blake's 7" that won the bigger audiences. Thomas died in Surrey on 13 April 2016 of heart failure, at the age of 71. Thomas's first wife, Annie, was the mother of his two children; this marriage ended in divorce. His second wife, Sheelagh, was a make-up artist; this marriage also ended in divorce. His third wife was Linda. After many years living in the Scottish Borders he moved to live in the county of Surrey in 2009.