Eiichiro Oda has been well-admired for his long-term storytelling and incredible world building, but he's also an astonishingly talented character designer. The wackiness of One Piece's universe allows Oda to get pretty creative when coming up with the appearances of his characters, and this is especially true of the villains. Though some might already look terrifying from the get-go, such as the behemoths Kaido and Big Mom, there are others who don't look quite as intimidating, but that are still dangerous in their own unique ways.