Kowalski is a mountainous man, standing 6'6" and weighing almost 250lbs, since the juicer conversion, it's all muscle as well. He is an intimidating presence. His bald head is usually grimy from being outside and working on something or the other, his beard fairly well maintained. He's a good soldier and does his job, if a bit sadistically at times. He is a heavy weapons specialist, and loves his job, which is evident in his performance.