Carl Fester King is an scammer who mainly sells items of low quality. Because his name is 'King', he believes he is one, sometimes wearing a cape and a crown which is also his logo.
In his first appearance on the show, he published a newspaper with mind controlling ink. Other schemes of his include attempting to steal Miss Darling Sweatypie's "fountain of eternal youth", stinking up Montréal to sell air fresheners, disguising as a mascot to ruin the Montreal Marvel's reputation, and partnering with Whip Smart to be the "king of the ring". His schemes are quickly ended by Jacob, usually along with Renee, Buford, and Mr. Dinglebat.