Joanna Vanderham, 22, played a socialite who has a relationship with a music journalist in Dancing On The Edge, the drama about a jazz band in London in the 1930s.
The script for the BBC2 drama, written and directed by Poliakoff and broadcast earlier this year, required the actress to be nude while her character had sex on a train.
Vanderham, originally from Scone in Perthshire also stars in The Paradise. The BBC1 drama is set in the 1870s in England's first department store. She said: "It's sort of been turned into a story of me standing up and being quite forthright when actually it came more out of embarrassment than anything else.
"It was more a case of 'I really don't want to do that' than 'women should not be asked to do this'."'
The actress, who ended up wearing a black camisole in the scene in Dancing On The Edge, said in an interview: "That scene was written 20 minutes into the first episode, you barely knew my character.
"I would have had to spend the rest of the series trying to convince the viewers that I wasn't just the naked one."
Vanderham's Dutch businessman father Tom and mother Jill, a professor of cardiovascular research at Dundee's Ninewells Hospital, split up when she was 11, which she said forced her to grow up at an early age.
She attended High School of Dundee before studying drama at the Royal Welsh College of Music and Drama in Cardiff. She was talent spotted in only her second year there for a role in The Runaway. She also plays Cathy in Sky TV's serial The Runaway adapted from Martina Cole's novel.