Sector Z were once Kids Next Door operatives who kidnapped by Father and placed in his prototype Delightfulization Chamber. Due to a freak accident, it increased eleventy-billion fold, making the effects permanent, turning them into the Delightful Children From Down The Lane. The location of their Treehouse is unknown. They are Numbuh 1's cousins by adoption. They are only seen in Operation: Z.E.R.O.
The personalities of the operatives cannot be fully defined due to the lack of involvement of Sector Z in the Kids Next Door series.
Appearance: Short blonde boy
Weapon Type: Carrot Nunchucks
David<p style="margin: 0in 0in 10pt;">Apperance: Tall brunette boy
Weapon Type: Eraser tipped Spear
Appearance: Tall blonde girl
Weapon Type: Umbrella
Appearance: African-American bo
Weapon Type: Boxing Gloves
Appearance: Brunette girl with pigtails
Weapon Type: Cooking Utensils