The Warden is the main antagonist of the series. He is in charge of the Tomeoki Facility . He chases the five boys who have escaped; Tomlong Driskamms, Jamboy Gum, Refus Brawen, Ozary Ottabey and Husky Ra.
The Warden is an extremely tall man with a traditional wardens uniform, which displays many medals and awards on it's chest. His eyes are covered by the brim of his cap and have not been seen.