Jarn has a closely shorn beard, buzzed black hair, a noticeable scar on his forehead from being mauled by a bear years ago, and usually wears a concerned expression on his face. However, he is quick to smile and laugh, likes to socialize with his mates, enjoys the company of beasts and animals, and enthusiastically hunts giants to slay them. He is a two-weapon fighter who wields dual axes.