Heh heh! I don't mind anymore! The only reason I wanted to be human was to make friends! I'm fine being a monster for Luffy's sake!
Tony Tony Chopper, also known as "Cotton Candy Lover" Chopper, is the doctor of the Straw Hat Pirates and one of the Senior Officers of the Straw Hat Grand Fleet. He is the sixth member of the crew and the fifth to join, doing so at the end of the Drum Island Arc. He was temporarily forced to join the Foxy Pirates during the Long Ring Long Land Arc, but was quickly returned to Luffy's crew.
Chopper is a reindeer that ate the Hito Hito no Mi, a Devil Fruit that allows its user to transform into a human hybrid at will. He was taught medicine on Drum Island by his two parental figures, Doctors Hiriluk and Kureha. Chopper aims to travel all across the world in the hopes of accomplishing his dream of being able to cure any disease.
Most of the time, Chopper is a toddler-sized human/reindeer hybrid, but his Devil Fruit abilities allow him to change his appearance depending on the situation. Chopper's left antler is braced at the base by a metal plate because it was reattached after being broken during his search for the Amiudake when he was younger (where he thought the Amiudake can cure Hiriluk's disease) and ran into the leader of his old herd, who severely injured him. He usually wears a large pale red/pink fuzzy top hat with a sideways medical cross (given to him by Hiriluk) and a maroon pair of shorts. He also sometimes wears a blue backpack that has the same sideways medical cross as his hat. He also has a remarkable blue nose. As Oda's style evolved and many readers commented on how cute Chopper was, Chopper has been given a much more "chibi" like appearance, meaning that when in his preferred transformation (which he calls Brain Point), he has a larger head and eyes and a less defined muzzle than earlier in the series. Many female characters, such as Nami, Robin, Makino, Porche, Shakky, and Vivi find Chopper very cute. There are even males that find Chopper cute such as Foxy and Breed.
Similar to most of his male crewmates, Chopper has the same outfit throughout most of the series.
After two years, Chopper is significantly leaner. He is less potbellied than he was in earlier seasons and his arms/forelimbs are also skinnier. It is arguable that since leaving the cold climate on Drum Island, he has lost significant body fat. The color of his fur has changed from brown to gold, and according to Nami (when she and Chopper reunite on Sabaody), the texture has gotten softer.
Chopper now wears a blue cap that has a ring of dots around the circle, while the cap has buckles hanging from it. He wears this over his old pink hat. He also wears a white and yellow vertical-striped tank top, which he takes off when he transforms into Heavy Point, and an orange pair of shorts. Aside from being slightly slimmer and having his fur changing from dark brown into a light brown color, Chopper's Brain Point form has not changed. His Walk Point (reindeer) form has grown considerably, now being roughly as tall as Usopp. His horns are larger, he has more muscle, and his fur is longer. His Heavy Point has become exceedingly larger and more muscular, being almost the size of Dosun's. He also developed new transformations through his research during the timeskip, which he debuts on Fish-Man Island, including Kung Fu Point (which he uses to defeat Neptune's soldiers) and a revised Horn Point (which he uses against Daruma).
Typically, it is rare for doctors to fulfill roles other than medical practices for the benefit of those around them, but as the Straw Hat Pirates' doctor, Chopper's responsibilities are not limited to just medicine alone.
He occasionally performed tasks like steering the ship as their unofficial helmsman while on the Going Merry, and during the heat of battle, he can also fulfill the role of a physical fighter to support his friends.
However, due in part to his lack of battle experience or formal training (as well as his Rumble Ball's time limited effect) Chopper was originally considered part of the "Weakling Trio" along with Nami and Usopp. This lay largely in his lack of battle intuition and naïveté at the time, though it is shown that he has gotten much more capable after his two years of training on Torino Kingdom.
Because he is originally an animal, Chopper can understand and communicate with other animals, thus allowing him to serve as a translator between animals and humans. This was first seen when Chopper translated Karoo's speech on how he ended frozen in the icy waters of Drum Island next to the Going Merry.
Having studied under Dr. Kureha, one of the finest doctors of the medically advanced Drum Kingdom, Chopper himself is an extraordinary doctor with outstanding knowledge of both medicine and medical drugs as well as the preparations of most remedies and ointments that can be made from regular fruits, herbs, roots, and vegetables that can be found and used on most islands. He is also capable of administering surgery and resuscitation. Overall, Chopper can treat even the most brutal injuries.
During the two years he spent self-studying the Torino Tribe's massive collection of books on herbalism in the Torino Kingdom, Chopper's knowledge of pharmacology has immensely increased. In the Torino Kingdom, Chopper self-studied many books of new and highly effective remedies, ointments, unknown herbs with great healing properties and other medicinal drugs that were developed by the inhabitants of the Torino Kingdom which are largely unknown to the rest of the world. With this new understanding of medicinal drugs, combined with the medical skills he had already mastered in the Sakura Kingdom, the scope of Chopper's healing skills as a doctor have become noticeably wider. The greatest example of this is during the Zou Arc, as Chopper, with the assistance of the Mink Tribe's doctors, was able to use all of these skills to treat the gigantic, thousand-year-old elephant Zunesha, whose leg was badly injured by the Beasts Pirates.
Chopper was able to invent his very own drug known as the "Rumble Ball", through 5 years of research, which helps to increase his Devil Fruit's fighting capabilities. In addition, while he was under the apprenticeship of Dr. Kureha, Chopper became aware of the highly addictive drug NHC10 (which only selected scientists in selected countries are allowed to use), and its harmful side effects. He is capable of stabilizing the condition of someone suffering from an overdose of the drug. Chopper also easily created a cure for one of Queen's deadliest viruses, the Mummy virus, doing so in a relatively short amount of time. Furthermore, Chopper knows how to engineer viruses of his own, but only with the intent of counteracting other viral diseases. He also created a drug that allows minks to access their Sulong Forms anytime without the need of the full moon.
Chopper ate the Hito Hito no Mi, a Zoan-type Devil Fruit that allows him to transform into a human and reindeer-human hybrid at will. It also gave him human level intelligence and the ability to speak human language. It also allows him to walk upright on two legs and hold things in his cloven hoof hands. This power is what allowed Chopper to become a doctor and learn about medicine in the first place, which is impossible for a normal reindeer.
After the two-year timeskip, Chopper has developed the ability to access the additional forms at any time and without time limit, without even needing to actually take the Rumble Ball. Furthermore, both his Horn Point and Guard Point have developed considerably; both his Horn Point horns, and his protective Guard Point fluff are much bigger, thicker, and stronger. He has also developed an entirely new transformation known as Kung Fu Point, he is seen being able to perform formidable martial art maneuvers with this new form, melding the advantageous characteristics of Arm Point and Jumping Point.
Additionally, he also developed his Monster Point; he now only needs a single Rumble Ball to enter this form, and he can stay in control of himself, allowing him to fight in his most powerful form for three minutes. How he managed to advance his level with the drug is currently unknown.
kue Ōtani (大谷 育江, Ōtani Ikue, born August 18, 1965) is a Japanese actress who specializes in voice acting. She is best known for her anime roles in the Pokémon series (as Pikachu), One Piece (as Tony Tony Chopper), Detective Conan (as Mitsuhiko Tsuburaya), Corpse Party (as Sachiko Shinozaki), Naruto (as Konohamaru Sarutobi), Cookie Run: Kingdom (as Pancake Cookie), Smile PreCure! (as Candy), Uchi no Sanshimai (as Fu), Konjiki no Gash Bell (as Gash), and Persona 5 (as Morgana). She is currently attached to Mausu Promotion. Her pet name is "Iku-chan". She is known for playing both male and female roles, and sometimes plays multiple roles in one production. She is a native of Tokyo, but grew up in Niigata Prefecture.
Brina Michelle Palencia (born February 13, 1984) is an American voice and television actress. She has voiced a number of English-language versions of characters featured in anime. Palencia provided the dubbed voices of Tony Tony Chopper in One Piece, Touka Kirishima in Tokyo Ghoul, Vi Graythorn in Case Closed, Eve in Black Cat, Honoka Sakurai in Suzuka, Ai Enma in Hell Girl, Kazumi Yoshida in Shakugan no Shana, Kurumu Kurono in Rosario + Vampire, Ciel Phantomhive in Black Butler, Juvia Lockser in Fairy Tail, Holo in Spice and Wolf, Kazuhiro Mitogawa in Ga-Rei: Zero, Sakura Minamoto in Zombie Land Saga, Yuno Gasai in Future Diary, Miharu Rokujo in Nabari no Ou, Ruiko Saten in A Certain Scientific Railgun, Maho Minami in Beck: Mongolian Chop Squad, Ryoko Okami in Okami-san and Her Seven Companions, Minoru Mineta in My Hero Academia, and Isuzu Soma in Fruits Basket.