 In "Curse of the Black Pearl", Jack is played by Tara, a ten-year-old female capuchin, and Levi, an eight-year-old male.The skeletal monkey was added in post-production by Industrial Light and Magic.In "Dead Man's Chest" and "At World's End", Jack is played by Boo Boo, a twelve-year-old male and Mercedes, a ten-year-old female.