Numbuh 14, or Mary-Lou Sarah-Jane Jones, is the leader of Sector N. She was first seen in Operation: M.A.C.A.R.R.O.N.I., alongside her teammates, when Sector V informed them that they have rescued Numbuh 13 and are returning him. To avoid being given the extremely unlucky and troublesome boy, Sector N pretended their treehouse was under attack and then disguised themselves as Mexican fast food workers to stall Sector V's request. Numbuh 14 has also been seen in Operation: H.O.L.I.D.A.Y. and Operation: I.T.. She also appeared in The Grim Adventures of the KND, alongside Numbuh 60, Numbuh 74.239, Numbuh 362, and Numbuh 20,000. She appeared at the very end of Operation: Z.E.R.O., alongside all the KND operatives. She is voiced by Jennifer Hale.