Pica is an extremely broad, intimidating and muscular man. His hair is long and lavander, wavy and light, which hangs down to his shoulders. It appears that under his mask, he has a straight mustache. Even his eyes appear to be colored lavander. The most distinctive features on his body are his shoulders, which have three (previously two) spikes protruding out of each shoulder blade that appears to be part of his actual flesh. He is considerably taller than normal people, appearing as tall as Trebol and Diamante. There is a tattoo of a spade on the front side of both his shoulders.
He wears a yellow-gold spiked helmet with a narrow four-pointed star on the front with a spade on the top point; the star covers his eyes in a visor-like fashion. He has dark gauntlets and white bandages on both of his hands that go up halfway to his shoulders. He also wears a metallic belt with a black spade emblem with a light-colored outline on the front attached by chains in a manner, resembling suspenders albeit with chains wrapping around his hips and from front-to-back instead around his body over a pteruges skirt. Underneath his pteruges is a pair of dark speedos. He also wears a pair of light-colored greaves, and a large pair of black gloves that reaches up to his forearms. His most recent appearance also shows him wearing a light-colored spade shaped armoured chestplate with the spade symbol attached by light-colored leather straps and a metal chain in-between the light-colored leather straps at the top with armour plating stretched and wrapped around his sides and black and white armbands just a round his elbows. Of all the executive officers of the Donquixote Pirates he is the most muscular and with the biggest and widest arms, hands and fingers, he wears black gloves that reach up to his forearms.
Pica seems to be a quiet individual, likely due to his surprisingly high pitched voice for his size. He is extremely sensitive about his voice, and in the event he does speak and is laughed at, he gets extremely upset, going as far as to brutally murder people for it.
He is very loyal to Doflamingo as he abandoned his battle with Zoro to protect Doflamingo after the Shichibukai's string puppet was decapitated by Kyros. He also considers his crew as his family, as he set out personally to seek out the enemies who threaten their safety. However, as seen when Machvise ran from Pica's large scale attack after Luffy angered the latter, there are times where his anger gets the better of him and he may neglect the safety of his family.
He believes strongly in his ability, saying that he alone will be enough to defeat the enemies in Dressrosa and prevent them from getting to Doflamingo. He openly said that three or three hundred people makes no difference to him.
Like many One Piece characters, Pica has a distinct laugh: "Pikkya-pikkya-pikkyarara".
Pica is powerful enough to occupy the Spade seat in the top tier of Doflamingo's crew, giving him command over a broad subdivision of the crew.
Pica, along with Trebol and Diamante, was able to defeat the entire army of Dressrosa.
Viola also expressed worry at multiple instances regarding the interference of Pica in Luffy, Zoro, and Viola's entering of the royal palace, so it can be assumed that Pica is rather powerful.