Jack the Monkey, or simply Jack, was the second pet monkey owned by the black-hearted Captain Hector Barbossa. Named after Captain Jack Sparrow, as something of an insult to Sparrow, this capuchin monkey was considered the meanest, most rotten-tempered simian in all the Caribbean. Jack the Monkey first joined his owner in a search to find of the cursed treasure of Cortés, which Jack lived under throughout his life as an undead monkey.