Numbuh 35, or Bartie Stork, is a KND operative stationed at the Kids Next Door Moonbase. He is responsible for informing other operatives when they are summoned to the Moonbase and is one of two people (along with Numbuh 86) to have the password for the Maximum Security Vault. He was seen in Operation: T.R.E.A.T.Y. sitting next to Numbuh 23 during Numbuh 362's speech.
He was also seen in Operation: Z.E.R.O., running away from Senior Citizombies as they attacked Numbuh 23, and was later seen threatening a zombified operative with a M.U.S.K.E.T. He made no further appearance until the end of the movie.
- He was voiced by Dee Bradley Baker in all his appearances except in Operation: U.N.D.E.R.C.O.V.E.R., when he was voiced by Tom Kenny
- Numbuh 35 is one of the many operatives who have their own 2x4 technology vehicles.
- In all of his appearances he has light brown hair, except in Operation: C.A.K.E.D., in which he has blonde hair.