The Cookie Crook is an anti-hero robber who attempts to steal the Cookie Crisp, and the Cookie Cop (also known as Officer Crumb), a police officer with an Irish accent who thwarts the Cookie Crook's attempts to steal the Cookie Crisp.

A typical ad would begin with the Cookie Crook attempting to steal the cereal from a live-action breakfast table; often he and the Cookie Cop were portrayed as no larger than mice, so their pictures on the cereal bowl were "life size". The Crook would have some ne