G. P. the Guinea Pig

G. P. the Guinea Pig is one of the main characters in Tales of the Riverbank. He is Boastful and creative, as well as being the Riverbank's resident inventor.

His creations included a "winch-a-ma-bob" and a "recyclamobile". He lived in a wooden house with a prominent water wheel at the front. He had a small plane, which he flew in several episodes, and spoke in a voice that sounded rather like W. C. Fields (in the BBC version, he speaks with a strong Yorkshire accent).