Codename: Kids Next Door
Chad Dickson (voiced by Jason Harris) - Formerly Numbuh 274, Chad was the supreme leader of the Kids Next Door until it was revealed in "Operation: E.N.D." that he had hidden his thirteenth birthday to the KND and arranged Sector V's decommissioning. Due to his treason he allies with the adults and joined the Teen Ninjas. In "Operation: T.R.E.A.T.Y." it is revealed that he was actually a TND operative working for the Splinter Cell.