Donquixote Rosinante.

Rosin ante was a tall man (standing just below his brother at 293 cm) as a 10-year old Trafalgar Law was not able to reach his waist; in adulthood, he was a comparable height to his older brother Doflamingo (who stands 305 cm). He had golden-blonde hair, pale skin (tanner in the manga, much like his brother), and sharp, reddish-brown eyes. He was seen wearing a dark red hood from which two heart-like shapes hang from, a pair of beige jeans (white in the anime), a dark purple feather mantle much like his brother and a white shirt with pink hearts printed all over it. He also wears mismatched shoes. His hair was styled longer than his brother's, as it came close to his eyes. Rosinante had tattoos (or makeup) over his eyes and mouth.[14] He was also seen wearing sunglasses, though he did throw away with these upon his six-months journey with Law.

During his childhood, Rosinante had his hair in an unkempt fashion, covering his eyes. Prior to leaving Mary Geoise, he wore the typical garb of the Celestial Dragons, and had his hair in the same style as his older compatriots. After leaving, his hairstyle changed and he had wardrobe consisted of simple yet fine clothes with a frilled cravat that became very ragged due to the uneasy lifestyle he had to endure. Suffering from torture at the hands of the locals who hated the Celestial Dragons, as well as other battles, left scars and stitches all over his body. Upon joining the Marines, Rosinante wore the standard cadet uniform, minus the makeup/tattoos he has when working as a spy.[8]

When Trafalgar Law first met with Rosinante, Rosinante was noted for hating kids, especially when Baby 5 and Buffalo played practical jokes on him, such as making him slip upon passing through the doorway or giving him scalding tea that burned his tongue, resulting in his abusive behavior towards them. In fact, the first thing that Rosinante did to Law was to grab him and throw him out the window.[14] This was actually part of an act.