Breed is an anime only pirate. He is the main antagonist of the Caesar Retrieval Arc.
At some point in his past, it seemed that Breed got into a conflict with a former crew of his, in which he was betrayed and kicked out of the crew. This conflict led him to believe that friendship was meaningless. When he encountered a Kung-Fu Dugong and his crew of animals, Breed enslaved them and turned them into his obedient "pets" with the power of his Peto Peto no Mi.
Debut: Episode 625
(Source: One Piece Wikia)