Pirate Jack appeared on December 7 2004 at the Sushi bar where Mar, Knacks, and Kuse were causing a drunken commotion. They maintain that they aren't pirates.
In 2005, he was hired as muscle for Waiterbot's mid-month battle. He was only seen strangling White Goose, and while there was no depiction of his fate, he is seen in the corpse pile left behind for Santa 2004 to clean up.