Perona is the former Wild Zombies and Surprise Zombies Commander of Thriller Bark before the collapse of Gekko Moriah's zombie army. She is able to produce ghosts from her body through the powers of the Horo Horo no Mi. She was one of the major antagonists of the Thriller Bark arc, being one of the Mysterious Four, but has since begrudgingly allied herself with Roronoa Zoro.
Perona is drawn in a rather different style from the usual, with big round eyes. Her hair is light pink colored and very long. Her feet are usually seen with her toes pointing inwards in a 'pigeon-toed' manner, whether or not she actually has the medical condition is unknown.
Her looks are inspired by the 'Gothic Lolita' style, with black, white and bright red. Perona's usual hair style has it tied in two high pigtails with somewhat flower-shaped black and white hairpins, and she always wears a red crown with a cross on top. Her tights cover her entire legs and wears a mini-skirt and red buckled boots to match. She is always wearing red lipstick and a thick layer of eyeliner. She is often seen carrying around a red umbrella shaped somewhat like a cute version of a mini devil before her battle with Usopp.
After the two year timeskip, Perona has a more mature look than before. Perona is seen on Sabaody Archipelago wearing a long black strapless dress with lavender ruchings, red high heeled boots and a big black top hat with a white floral decor. She has a pink bat tattoo on her left bicep as well as a watch on her left wrist and wears pink nail polish on her fingernails. She still has her signature umbrella and also carries a stuffed animal with her that very much resembles Kumashi. She also has a different hairstyle now; before the timeskip, it was in two straight pigtails on the side of her head, now her hair is at the back of her head in at least four spiral braid