Captain James Hook is a fictional character and the main antagonist of J. M. Barrie's 1904 play Peter Pan; or, the Boy Who Wouldn't Grow Up and its various adaptations, in which he is Peter Pan's archenemy. The character is a pirate captain of the brig Jolly Roger. His two principal fears are the sight of his own blood (supposedly an unnatural colour) and the crocodile who pursues him after eating the hand cut off by Pan. An iron hook replaced his severed hand, which gave the pirate his name.