The Galactic Kids Next Door

The Galactic Kids Next Door was an American animated adventure-science fiction television series, serving as a spin-off to , being created by Tom Warburton. It was produced by Cartoon Network Studios and aired on Cartoon Network from June 5th, 2014 until November 9th, 2018.

Synopsis
When Numbuh 1 gets chosen to become Earth's representative of the Galactic Kids Next Door, he quickly discovers that they are way more wicked than it was rumored as they want adults to be exterminated and as a result, he needs to escape from their grasp and inform the others about their dark motivations, even if it implies becoming solo and not counting with his old crew's help.

Main

 * Nigel Uno/Numbuh 1 (voiced by Benjamin Diskin) - the former leader of Sector V who now is forced to both stop both the GKND and numerous adult alien villains.
 * Numbuh 74.239 (voiced by Dave Wittenberg) - a former member of the GKND who now aids Numbuh 1 after learning the true sinister nature of the organization he once worked for.
 * Numbuh Infinity (voiced by Phil LaMarr) - another former member of the GKND who joins Numbuh 1 on trying to stop them from destroying adults.

Supporting

 * Rachel T. McKenzie/Numbuh 362 (voiced by Rachael MacFarlane) - the stern but somewhat supportive supreme leader of the KND who occasionally aids Nigel and his crew with battling the GKND and consequently becomes a criminal in the eyes of the GKND.

Antagonists

 * The Galactic Kids Next Door, consisting of:
 * Numbuh Prime (voiced by Mae Whitman) - the sadistic head of the GKND who despises adults and plots to eradicate every single adult in the universe and settle a tyrannical monarchy where kids are in charge.
 * Numbuh 3.14 (voiced by Richard Steven Horvitz) - a highly intelligent GKND operative who is highly loyal to Prime's cause and claims to know more than the smartest human alive.
 * Numbuh 567 (voiced by Daran Norris) - a brutish alien operative with a rather deep voice who is known for being a very dangerous threat.
 * Numbuh 9.8 (voiced by TBD) - a skilled huntress agent who has an one sided crush on Nigel and has been hunting after him.

Episodes
See List of episodes.

Trivia

 * Tom decided for none of the other mains from the original series to appear due to both being set in space and it is Nigel's story, not Sector V's.
 * Tom confirmed that Sector V is swamped with missions on Earth and due to that, can't help Nigel.
 * Unlike the original show, Curious Pictures isn't involved with the production of the series due to its bankruptcy in 2014, with production being directly handled by Cartoon Network Studios instead.
 * Variant:
 * Cartoon Network Studios: the custom animation features Numbuh 1 battling a group of GKND operatives.