Chad Dickson aka Numbuh 274 is a former kid operative and currently a teenage operative of Codename: Kids Next Door series.
He is also the former (and still current) mentor of Numbuh 1 (Nigel Uno), who also the one who revealed his teenage secret identity (aka 13-year-old), leading to traitoring the Kids Next Door Organization. But on the latter part of the series, he revealed that he is still one of them, although joining a different organization named Teenager Next Door (a group of selected teenagers who previously affiliated with the Kids Next Door Organization, and currently their right hand to undercover and investigate the evil teenagers and adults who has their evil plan to destroy the KND), and he had to pretend to traitoring them so that the teenagers and even adults believed him that he is no longer having a connections with the KND.
He was also a good football player and the smartest of the organization. He is also the son of the 2 villain adults namely Destructo-Dad and Mega-Mom. He was last seen in the episode Operation: T.R.E.A.T.Y.
<under construction (date 07/13/16)>