The new Sector N consists of three girls, and two boys.
Click here for the original cast.
Sector N is located in Austin, Texas - more specifically, Barton Creek - and is the second generation of their particular sector, replacing Numbuhs 13, 14, 15, and 16. Their tree house is in the heart of Barton Creek Wilderness Park. Despite being placed in a rural state, none of the members show stereotypical behavior or appearance. Unlike the original Sector N, there are five known members listed below, and they are commonly called upon by Sector X. They all attend Barton Hills Elementary during the school year.
- Numbuh 30-70: Numbuh 13's younger cousin who is the new Damage Control officer and is always eager to help others.
- Numbuh 55: Known for his bravery and vanity.
- Numbuh 1812: The leader, who is cool and collected virtually all the time.
- Numbuh 2101: The aviation technician who intends to be an engineer for NASA.
- Numbuh 1966: The sports-loving, tree house-tidying twin sister to Numbuh 2101.