Remember Peter Lambert in Age of Miracles?
Michael Sinclair (Peter Lambert, who played one of the vicar's accusers in Rumpole and the Age of Miracles) can be seen in a leading role along with Richard Griffiths in "Pie in the Sky". Sinclair plays a police supervisor.
In the 20 plus years since Rumpole he has barely changed.
Of course, Miracles was a hopeless case with Horace defending in the ecclesiastical court.