It was announced yesterday that Maurice Roëves has died at the age of 83. He had been in poor health for some time. Roëves played a single, but notable role in the Doctor Who universe: the cynical and brutal gun runner Stotz in the Fifth Doctor’s spectacular finale, The Caves of Androzaniin 1984. But in real life this was a minor note in a six-decade career, during which he frequently capitalised…