Jackie is a man in his mid-thirties with an average stature and a "solid" build. His features include a square jaw, wide nose, soft, brown eyes with thick eyebrows, and short black hair. His most common outfit consists of a light blue sweater, tan trousers, and brown running shoes. When his underwear was accidentally revealed, they were pink with a red heart pattern. Jackie is also often seen wearing his archeologist's garb: a white, sleeveless undershirt, khaki button-up long sleeve shirt, cargo pants and a sturdy pair of hiking boots. He occasionally wears a stealth uniform for covert operations, which is a dark gray sweater, black jeans and boots, and gloves.