She said: “We used two different wigs. The hairstyle we had for Charlotte Street in London, where they work, is a formal up-do, still with a stylish twist but much more office appropriate as Jean has been brought up to know it.
“It, therefore, works for her double life too. So, when she cuts it at the end of episode three it’s a kind of severing of the prescribed life and the path she was on.”
Her character has two very structured parents; her father is a general, and her mother is a debutante.
She studied Languages at Oxford and is engaged to a stockbroker, but the role of being a wife doesn’t sit right with her, and this kick starts her character’s journey into the world of intelligence gathering.