Welt is a brunette with matching brown eyes. He often dons a simple outfit: a dress shirt, pants, a scarf, belt, and a long coat. His scarf, pants, and shoes are all black, while his shirt and inner coat are white. His gray coat also has stripes of black in the front, and some on the inner fabric. He wears glasses, but they don't seem to be necessary. He is very serious and smart, and he can usually read a situation within minutes, and find the best outcome. He needs to warm up to you, first.