race is mostly decided on what you like lore-wise or what you think is cool, so Norn is as good as any other race.
As for class, if you're looking for a class purely based on what makes the most sense in the lore, than hunter and warrior are the two best choices hands down (though I've seen some good arguments for engineer), as the norn culture centers around being remembered for their legendary deeds in battle and being honored by their animal gods
Both classes are relatively easy to play and role play in these respects, but which one of the two you'll just have to determine based on what playstyle suits you more (read: run up and smack with giant weapon or using arrows, traps and beasts)
From there, depending on what effort you've put in for your char's backstory and/or personality, the roleplaying should fall into place.