Wacko is a major villain and an archenemy of Johnny and Dukey. Despite being a toymaker, he cannot stand kids and makes incredibly destructive toys in order to get rid of them. This confuses his employee's who are sick of hearing about their bosses repeated attempts to ruin the company by getting rid of kids. He seems quite intelligent, in spite of his appearance and behavior. He is the leader of the Johnny Stopping Evil Force 5 when he later assembles Brain Freezer, Mr. Mittens and Albert and Beekeeper into the group for the first time after the four were released from prison.