"I think it translates well," said Kate, who plays Chief Inspector Moira Jacobson.
"There's a similar grittiness to Scotland and Denmark and there's a dry humour in the language which Scott captures so well.
"He listens to the way you speak, the rhythms and the words you use and he works that into the script.
"I'm very sweary and the longer he was round me the swearier my character Moira became."
Scott has also been absorbing authentic Scots dialogue.
He said: "I remember when I discovered the word doolally, I thought I have to find a way to include that.
"The cast came up with their own phrases too. Kelly Macdonald introduced me to 'not having a scooby'."
Scott added he was delighted the book he's championed for almost two decades has now made it to the small screen, but he says it's up to audiences whether Department Q has a sequel.
He said: "The last three shows I made were meant to be one and done.
"There was no more to say but I'd love to do more with this and the next book in the series is even more interesting and relevant."