Numbuh I 54 was the 2x4 technology officer of Sector I. He had the I in his name because he was part of Sector I and there already is a Numbuh 54.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.