Kuki Sanban

Numbuh 3 is a Japanese Kids Next Door Operative. She is the youngest member of Sector V. She has a future husband named Numbuh 4.

Appearance
She has black long hair, an over-sized green sweater, black tights and black and white shoes. Her hands rarely show when she is wearing a sweater, but when she wears different outfits, her hands show.

The name Sanban means "Three" in Japanese.

Trivia

 * In the episode Operation H.O.T.S.T.U.F.F., Numbuh 3 serves as the main antagonist.