Winston was a bit of a challenge, all right, from a lot of different perspectives. It wasn't just the culture or the class divide or the historical baggage - it was also the age difference. We had to see if I could be aged-up legitimately, without it becoming some sort of hokey acting challenge.
The road Cordelia has travelled, the journey she has taken up to now has been such a joy to play as an actress, because there have been so many chances to do so many different emotions.