Or, rather, with his believe-nothing, question-everything delivery, a bit like Jonathan Creek. The character seems to cry out for someone a little more suave; maybe Clive Owen, Nigel Havers, or the late racing driver James Hunt. (Well, of course, it would be tricky casting Hunt - and besides, if ITV found a way of bringing people back from the grave, John Thaw would have a new series every week.)