Freddy is introduced as "the smallest and cleverest" of the pigs on the Bean farm. He is initially just one of the ensemble, but he becomes the central character shortly into the series. Freddy's interests drive the books as he becomes a detective, politician, newspaper editor, magician, pilot, and other vocations or avocations. A recurring villain is the slimy but dignified Simon, who leads a gang of criminal rats. Human characters include Mr. and Mrs. Bean (who own the farm), the population of local Centerboro, and human villains.