Cletus Junior is a trenchbilly fish who appears in the episode "Trenchbillies." He is the primary villain of the episode.
He is a trench billy with purple skin who has long brown hair, light yellow eyes with no pupils, a long brown mustache, and a southern drawl. He wears a torn, light green shirt with patches, torn brown pants, and a torn hat with a patch as well. He is seen carrying a pitchfork at certain times.