Grey Matter
Tiny in stature, but possessing a mind capable of solving the universe's greatest mysteries.
Grey Matter is one of Ben Tennyson's Omnitrix transformations, a Galvan from the planet Galvan Prime. He is a small grey frog-like humanoid whose main ability is his high intelligence.
Quick Facts
- Species
- Galvan
- Home planet
- Galvan Prime
- Primary ability
- Super Intelligence and Small Size
Lore & Background
His small size lets Ben get into places other forms cannot, as when he becomes Grey Matter to sneak onto a water slide.
Reader's Guide
Grey Matter first appeared when Ben was ten years old in the original series, quickly becoming a staple transformation due to his utility in tech-heavy scenarios.
Azmuth, the creator of the Omnitrix, is also a Galvan.
While still small, his strategic value is undeniable.
Did You Know?
- Richard Steven Horvitz voices Grey Matter in the original series, Eric Bauza in Omniverse and Todd Haberkorn in the 2016 reboot.
- Albedo, the rogue Galvan of Alien Force, belongs to Grey Matter's species.
More in Characters & Aliens
Elsewhere in Ben 10
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