John Paul "J.P." Mercer is one of Craig's best friends and one of the main characters from Cartoon Network series Craig of the Creek. He is optimistic, friendly and not-too-bright. He lived with his mother, his sister, Laura, and his cat, Goo. He notices Maney, one of the Horse Girls, have a crush on him and feels the same way in the episode "JPony".
In "Pencil Break Mania", he is an excellent pencil breaker.