You sound an expert in the Shetland stories, notanan2.
Irrespective of what he looks like, and I imagine 300 years of breeding since the Armada might have diluted some of the dark features, it sounds like Cleeves emphasises his outsider status in each book. Maybe I should be viewing/listening to the books in order.
Any thoughts on why they made Red Bones first? I am only hour or so in to the audio. There are so many differences between the TV and the book not least that the action is on Bressay not Whalsay. Closer to Lerwick I suppose so easier for Perez to nip back and forth. No mention of the Shetland Bus yet!