Angry Jack is a green fish and the manager of Angry Jack's Shell Emporium who only appears in the episode "Shell Shocked." He is actually a kind person who makes his commercials louder/better by being angry. However, when SpongeBob accidentally destroyed all the shells in his store, Angry Jack had "Blistering Fury."
He is green in color and wears a white shirt and a dark pink tie. Angry Jack and his loud voice spoofs many pitchmen, such as Billy Mays, who usually spoke very loudly to sell the product that they're advertising for.