Bildy is a fair skinned man with closely combed black hair and a black mustache and goatee. He wears a red and gold Marine-style coat, a blue vest, a white shirt, blue pants, and a black belt with a golden chain on it.
Bildy is extremely loyal to Smash and almost always partners up with him for a given mission.
Despite Bildy's gruff facade, he has an ironic sense of humor and genuinely enjoys participating in each caper.
His distrust of woman stems from his many failed romances (his luck with women runs from bad to worse, with love interests often betraying him or dying). He especially distrusts Robin.
Bildy is master thief and The DX Marines' head markman. He can perform a 0.3-second quick-draw and has an accuracy that borders on superhuman; he can shoot skeet with a handgun, explode a missile before it hits by targeting the warhead, and deflect another bullet by shooting it in mid-flight. He prefers to conceal his eyes using his hat, as it gives him a more enigmatic appearance; when one or both of his eyes are seen, it is occasionally used to demonstrate surprise. Bildy has a massive knowledge of guns and firearms, mainly due to him being around them so much.
He also showed the ability to copy any noise or voice the user has ever heard and emit a high pitch screech. It's unknown if it was a Devil fruit or not.