Captain Pegleg Jack is a pirate villain in the Teen Titans Go! comic series.
His only appearance was issue #33 of the comic series, where he was seen playing in a baseball game for the villain team. While the villain team was sourcing for extra players, Captain Pegleg, along with a Robot Commando, was pulled out of Mumbo's hat to fill in. Due to his pegged left leg, he was unable to catch Starfire's fly ball, despite trash talking Control Freak earlier when the latter doubted his baseball skills. At the end of the comic when a full-on battle ensued between the villains and the Titans, Captain Pegleg Jack was apprehended by Aqualad.