For more than 20 years, Glaswegian actor Blythe Duff filled the sensible shoes of police officer Jackie Reid in the classic ITV series Taggart, which finally ended production in 2010. Duff's Jackie was stoic and straight, a good girl who held the show together as the male cast came and
The James Plays will shock and awe
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James McArdle as James I in The James Plays.
Duff, 52, plays two roles and appears in each of the three plays. She particularly revels in the role of aristocrat Isabella, who appears in James I and II.
Isabella, she says with glee, is "absolutely vile", determined to undermine her usurper, James I, who has been sent to rule Scotland in 1424 after being imprisoned by the English for 18 years from the age of 13.
"She is the closest to being the Queen of Scotland that you could find at that period of history," says Duff. "Her husband has been on the throne and Isabella has had her feet under the table for a good few years and all of a sudden she has to step aside to let this new young buck come back to Scotland and take over. She's not that keen - ha ha," she cackles, "she welcomes him in some respects but it's very much on her grounds. James I and his new wife come back and very quickly Isabella sets out her stool."

The history of the three kings was not well-documented, with Munro relying heavily on a medieval document and her imagination. But it is known James I eventually went into hiding in 1437 and was tracked down, trapped in a sewer. Duff screeches with laughter.
"You can imagine that Isabella finds that absolutely wonderful. She is delighted. It's the only bit of closure she gets in her life. I love playing her but I don't like her. Of course, those are the kind of characters where you have to find some empathy with her. She acts because she's a mother and she can see they are being stripped of what she thinks is their right. But," she adds, "she does get her come-uppance and you see her being a bit of a sorry soul in James II."
Duff also plays another character in James II: Annabella, the king's sister, who becomes the rather fey James III's aunt in the third play. With the trilogy adding up to seven hours on stage, that's a lot of work for one actor. Duff mocks Danish actor Sofie Grabol, who played Detective Inspector Sophie Lund in The Killing TV series and Queen Margaret of Denmark in last year's staging of James III.
"She was only in the third one. I used to say to her, 'You're just swanning around.' But Sofie had a lot to contend with. She was constantly translating in her head, speaking to Scots people all the time, hearing what they say and trying to translate that back. She brought huge kudos to the production."
Duff recalls that at one point, while characters all around her were being killed or banished, she realised she wasn't going to get any time off. "I thought, 'oh gosh, what would I feel if I took one character out? who would I want to be?' I realised that the fact they are so different, and both really great characters, that I wouldn't want to miss out on Annabella or Isabella."
Besides, the trilogy - which includes sword fights, dance and music - created an incredibly tough cast.

"We had a long rehearsal period from April last year through to the end of July. We had a fight arranger and a choreographer and we were a very, very fit company. That's why I'm starting to panic that I'll not get back into my costume," she giggles. "The National Theatre of Scotland has been noted for its physical theatre and you are not going to be let down when you see The James Plays. We didn't know whether it would work as a trilogy and we had no idea whether the audience would be keen to see it all in one day." (Theatre-goers here will also have the choice of staggering it through separate days.)
"We were taking a big risk but we had an instinct we were heading in the right direction but it's not until you get an audience that you know how it's going to work," she adds. "We didn't know if people would come to the whole three but then we realised the audience really loved it and by the end of the day they had got used to the people they were sitting next to and they had a talking point."
Original cast members Peter Forbes, Daniel Cahill, David Mara, Andrew Fraser, Nick Elliot and Ali Craig will return for the Auckland season. Steven Miller (Black Watch) plays James I, Andrew Rothney (Outlander) is the disfigured James II and Matthew Pidgeon (Wolf Hall) plays James III. Sadly, Sofie Grabol will not be returning as Queen Margaret, with the casting of that role yet to be confirmed.
The James Plays were staged in London's National Theatre during the lead-up and voting day for the referendum for Scottish independence last October. James II ends with Queen Margaret telling the Scots that it's time to make a change and demanding, "What are you frightened of?"
The vote for independence failed.
"Well," says Duff, "there were all these Lion Rampant of Scotland banners hanging out of the windows in the quadrant where the dressing rooms are at the Nat and they didn't come down for a couple of weeks. It was an incredibly emotional time."