Because he's a good example of Nordid phenotype. Long skull / face, somewhat sharp and narrow eyes, straight nose…
That guy's haircut and glasses don't help a lot in this case though

"So… what's the difference between Meds and Nords again?"

"Oh, that's easy: Nords are permanently front facing and Meds are constantly at a 3/4 angle."

"Thanks man! The difference is obvious now that I think about it!"