Like any great shonen series, One Piece has very memorable villains. The majority of these villains are well written and fleshed out, and some of them have backstories that are both relatable and tragic. As One Piece's story has progressed, villains like Hatchi, Bentham, Bellamy, and Saint Mjosgard have found ways to redeem themselves, but there are certain villains who do not deserve to be redeemed.
Source：https://www.cbr.com/the-worst-one-piece-villains/
