Gender Male
Species Human
Planet Earth
First Appearance The Z-Ray Goggles of Power
Voiced By Rob Rackstraw

The Sniveler (Neville Thunderbottom) is a villain who originally assisted Doctor Doctor in breaking into U.Z.Z. only to later betray her and take it over himself. He attended school with Professor Professor and Doctor Doctor, and learn under Professor Zoomottle.

He attempted to prove himself better than Zoomottle's other students, he eventually get's fooled by them, acting as Zoomottle.