Jack the Monkey is a secondary character from the Pirates of the Caribbean franchise. A Capuchin monkey and the pet-sidekick of Captain Barbossa. Jack is named after the pirate Captain Jack Sparrow as an insult to the pirate's name. Always hot-tempered, Jack is considered the meanest and most rotten-tempered simian in all the Caribbean. Jack also appears in the villains tournaments always at his master's side.