Angry Jack is a green fish and the manager of Angry Jack's Shell Emporium who makes his one-time appearance in the episode "Shell Shocked." Angry Jack is also the main antagonist of that episode. Though the name says he's angry he's actually very kind. He did get angry when SpongeBob broke all the shells in his store. He had taken some limbs and a organ from SpongeBob to pay for the damages to his store.