I'm allowed to talk about Viggo Mortensen because he is half-Danish, which means semi-Nordic, which means yes please and I'm not cheating on this challenge :)
My favourite is when he is Aragorn, but it's not necessarily essential. The Aragorn thing really appeals to my inner nerd but the very best thing would be Aragorn-plus-a-little-less-beard-plus-a-little-more-regularity-when-it-comes-to-brushing-his-teeth. Mmm.
Do you have a favourite Scandinavian actor? I considered writing a post about Alexander Skarsgård before doing some googling and realising that I'm actually in love with the majority of his family. Maybe S should have been for 'Skarsgård family' but that's kind of creepy...