There are two Numbuh 44's, they're both twin brothers in the Kids Next Door, They're the 2x4 technology officers, and pilots of Sector CF. Their cousin Numbuh 53 is a member of Sector B, and Numbuh 83 is a member of Sector W. The brothers are Irish-American.
Inventions and 2x4 technology[]
Numbuh 44 and 44 both invented the G.U.M.G.U.N., Gum Unifiys Members Gone Uterbly Ne-wrong. They also created the T.R.A.S.H.F.L.Y.E.R., Trash Ray Air Ship Hastily Flys La-trips Ya-round Earth Reliably.