Lee Ingleby said his most awkward moment in his career was a nude sex scene with actress Lesley Sharp in this series, "having only met her that morning".
Joanne Froggatt had her first experience of nude scenes in this series, but says: "It was very difficult. I was really uncomfortable. It's not something I'd do again."
Joanne was required to film love scenes with co-star Lee Ingleby. "I don't know him very well and there I was, in just a G-string pretending to make love. It was terrible. I did try and discreetly put my arms up to cover me, but it didn't really work. I didn't realise I had such a lot of nude scenes until I got the final version of the script. I chose the part because I had just come out of 18 months in Corrie, then straight into playing a girl who committed suicide in Bad Girls and I just wanted to do something completely different - and it was. "I was pleased with it in the end, but still I would never do it again."
Lee Ingleby and Joanne Froggart worked together on several other projects after this one leading some journalists to believe, (incorrectly it would seem), that they were a couple.
Lee Ingleby and Paul McGann worked together again in the Doctor Who audio drama Terra Firma.