Numbuh 71.562 is a KND scientist. He has short black hair, buck-teeth, and wears thick-rimmed glasses, a baggy lab coat that drags on the ground, dark blue pants, a light blue shirt, a red bow tie, and black shoes. He has been seen in both the Deep Sea Science Lab and the Moonbase and is stated to be in Honors Pre-Science class at school. He was introduced in Operation: F.E.R.A.L., where he was one of the scientists who tried to return Numbuh 1 to normal when he became feral after being trapped on Rainbow Monkey Island. He suggests using "Element L" to cure Numbuh 1.