Carrot is a white-furred, blonde-haired rabbit mink with brown eyes, rabbit ears, a rabbit-like nose, and a large round fluffy tail, but with a body otherwise similar to that of a human adolescent girl. She is shorter than average, with a height of 161 cm (5'3"). She wears a sleeveless short orange dress with laced-up open sides with the Guardians' signature green cape, a single rabbit paw-like gauntlet, and brown, high-heeled boots. Carrot is very protective of the Mokomo Dukedom and is highly aggressive towards intruders. Like other minks, she refers to humans as "lesser minks". Carrot is also protective of people she cares about. When the Straw Hat Pirates were met by Germa 66, Carrot was willing to fight the evil army in order to protect them. She can also be very emotional; when Monkey D. Luffy ate poisonous fish skin and was left on the verge of death, Carrot begged him not to die and tearfully embraced him once the poison was sucked out of him. After Pedro sacrificed himself in a suicidal explosion, Carrot became devastated and cried profoundly before becoming enraged to where she attempted to take it out on Katakuri. Like a regular rabbit, she likes to gnaw on things, especially people's ears. She loves carrots to the point where her provisions for the trip to Whole Cake Island consisted entirely of them, and she ferociously attacked Luffy when she saw him eating her carrot, though she can be calmed down if someone pats her head. She also loves chocolate. Despite her warrior status, she seems to be naive and childish about serious matters and the world beyond Zou; she was easily excited by events new to her; when she heard Luffy was planning to crash Big Mom's party and ruin the wedding ceremony, she believed it would be exciting to take part in, not realizing the extreme danger she would be facing in doing so, and she was later surprised to hear that it would take several days to reach Whole Cake Island because of how big the ocean was, having believed that it was small enough to only warrant half a day's worth of provisions. She frequently copies Chopper's gag of being very happy when someone complements her while calling them a jerk and denying it. Additionally, she is not familiar with some natural weather phenomena, having mistaken lightning for Electro upon witnessing it at sea. She has always wanted to see the outside world and go on an adventure, and upon her discovery aboard the Thousand Sunny, she begged Pedro not to take her home immediately out of fear of being berated by Wanda. She is apparently scared of ghosts, as she was frightened by Brook's soul form. Despite her naivete, she has also proven that she can be rather clever and deceiving; she quickly devised a plot to use Charlotte Brûlée's mirror-based powers against her and successfully fooled several Big Mom Pirates into thinking that they had captured her.

When Carrot activates her Sulong form on a full moon, her eyes turn red with black sclera, her ears grow larger, and her hair and tail grow considerably and turn snow white in color, and they both emit Electro sparks. The fur around her neckline turns much thicker, vaguely resembling a lion's mane, and her claws become longer and sharper. Upon seeing this form, Nami considers it to be "so beautiful," and Jinbe comments that "it's quite mesmerizing." Whenever she transforms into her Sulong form, Carrot seemingly becomes more confident and vicious in combat. However, despite her drastic change in appearance and abilities, she still maintained her original personality, as shown when she blushed while fighting Charlotte Daifuku's crew. However, she proved to be more cunning than usual, as when she removed the steering wheel off of Daifuku's ship to keep them from going after the Sunny, and when she tricked his genie into attacking its master's fleet.