Frankenbeans called "Frankie" for short, he is a strange, lumbering Frankenstein's monster-type creature.
Frankie is a surprisingly gentle monster who allows Wolfie to stay in a dog house kept in his room. He has little ability to speak, often roaring or saying toddler-like sentences.
He was once kidnapped by the Magnavores, and held by ransom in exchange for the Beetleborgs' Beetle Bonders. - "Bye bye Frankie"
Dr. Baron von Frankenbeans, his creator, appeared a few times, a mad scientist who treated the monsters like servants. However, he is actually a benevolent doctor; he cured several ailments of the other monsters, such as Flabber's split personality problem and Mums antithesis.