Who Do You Think You Are?

Derek Jacobi (12x3)

Air date: Aug 27, 2015

Derek Jacobi grew up in Walthamstow and a clue in his mother's family tree hints at a more colourful past. He soon finds out that, far from being from humble roots as he had thought, he is in fact descended from a wealthy French Huguenot fleeing religious persecution in France.