
Captain Jack Sparrow commands the legendary and accursed ship named the Black Pearl. In some versions of the script, it is said that Jack was a cartographer before he became a pirate, and this was how he discovered the location of the Isla de Muerta.
Sparrow is also known for his altruistic nature; he often puts himself in harm's way to save other people, most notably Will and Elizabeth. The film's script suggests Jack's kindness is part of the reason why his crew mutinied—when Jack offers a nonviolent way to find a piece of the cursed Aztec gold on the Navy ship Interceptor, Barbossa claims, "Now, y'see Jack, that's exactly the attitude that lost you the Pearl. People are easier to search when they're dead." Additionally, he appears highly adept at employing game theory to achieve his ends.