Tony Tony Chopper is a fictional character from the popular anime and manga series One Piece, created by Eiichiro Oda. He is a reindeer who gained the ability to transform into a human after eating the Hito Hito no Mi, a type of Devil Fruit. Chopper serves as the doctor of the Straw Hat Pirates, using his medical knowledge to help his crewmates and others in need. Chopper is known for his cute appearance, featuring a blue nose and a small stature. He often wears a hat adorned with a red cross, symbolizing his role as a doctor. Despite his adorable looks, Chopper is a skilled fighter and can use various forms in battle, making him a valuable member of the crew.