tony tony chopper ~ doctor "The Straw Hat Pirates"

Tony Tony Chopper (トニートニー・チョッパー, Tonī Tonī Choppā), nicknamed "Cotton Candy Lover" Chopper (わたあめ大好きのチョッパー, Watāme Daisuki no Choppā), is the crew's 15-year-old doctor. He is a blue-nosed reindeer who gained human properties by eating the zoan Devil Fruit called the Human-Human Fruit (ヒトヒトの実, Hito Hito no Mi).^. The fruit-granted ability allows him to change between three forms. His first and original form is that of a reindeer. In his second form, he has the proportions of a human child, while retaining his antlers, hooves, and fur. In his third form, he looks like a brawny man with fur or gorilla. In addition to his normal transformations, Chopper developed a drug he calls Rumble Ball (ランブル・ボール, Ranburu Bōru), which allows him to assume four additional forms for the duration of three minutes. These forms focus on certain aspects of his body to improve his physical abilities. These are broken down into "points" in the original version (renamed "boost" in the English manga and the 4Kids dub) called: guard, horn, jumping, and arm point with the original three becoming walk, brain, and heavy point. If Chopper uses a second Rumble Ball within six hours, he cannot control his transformations. If he uses a third Rumble Ball within six hours of the first, he transforms into a monstrous version of himself and loses all self-control called "Monster Point". He also has the ability to understand other animals' speech, because he is an animal himself. What he is not capable of, however, is hiding his feelings. Chopper's current bounty is 50 Berries. He is voiced by Ikue Ōtani in the Japanese version of the franchise. In the English dubs, he is voiced by Lisa Ortiz for 4Kids, and by Brina Palencia for Funimation.
When creating Chopper, Oda stated that he wanted a mascot who is both cute and fearless. An IGN review of the manga praised Chopper's character as one of the best in the series and said that he was able to be both touching and funny. Chopper ranked in the Top 5 of both Shōnen Jump character popularity polls since the character's introduction. Oda said that the message he wanted to illustrate in regards to Chopper's family situation is that a person who is not blood-related to another person can still be considered as a member of one's family.