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Note: This is the Reboot version of Grey Matter, For his prime counterpart, see here.
Grey Matter Reboot

Grey Matter is one of Ben Tennyson's alien egos from Ben 10 Reboot.

He is voiced by Todd Haberkorn.

Appearance

Grey Matter’s appearance is similar to his vision in "Ben 10: Omniverse", but his bodysuit is designed differently. His head stripe returns, he is shorter, and he has reddish-orange eyes.

Powers and Abilities

Grey Matter’s main (and only) power is intelligence. As he has little to no physical ability (save for sharp teeth) he relies on his intellect to outsmart his enemies. He possesses enough intelligence to work advanced machines and build highly advanced weapons. Likewise, the mucus his skin secretes allows him to adhere to surfaces to climb them.

Trivia

Gallery

Navigation

          Ben 10 logo Heroes

Main Heroes
Ben Tennyson | Gwen Tennyson | Max Tennyson | Kevin Levin | Rook Blonko

Allies
Azmuth | Professor Paradox | Cooper Daniels

Original Series Aliens
Heatblast | Four Arms | Diamondhead | Ripjaws | Upgrade | Ghostfreak | Stinkfly | Grey Matter | Wildmutt | Cannonbolt | Wildvine | Upchuck | Ditto | Blitzwolfer | Snare-oh | Frankenstrike | Eye Guy | Way Big

Alien Forces/Ultimate Alien Series Aliens
Swampfire | Chromastone | Humungousaur | Spidermonkey | Echo Echo | Big Chill | Brainstorm | Jetray | Alien X | Lodestar | Clockwork | Rath

Omniverse Aliens
Feedback | Gravattack | Kickin Hawk | Atomix | Astrodactyl | Bullfrag | Crashhopper | Pesky Dust | Freezelizard | Shockquatch | Buzzshock | Whampire

Reboot Series
Ben Tennyson | Gwen Tennyson | Max Tennyson

Reboot Series Aliens
Heatblast | Diamondhead | Four Arms | Grey Matter | XLR8 | Wildvine | Cannonbolt | Upgrade | Stinkfly | Rath | Humungousaur | Overflow | Gax | Shock Rock | Slapback | Glitch | Jetray

Others

Ultimate Forms
Ultimate Echo Echo | Ultimate Humungousaur | Ultimate Swampfire | Ultimate Beast | Ultimate Big Chill | Ultimate Way Big |

Fusion Aliens
Atomic X | XlrArmBlastDiamond

Other Omnitrix Users
Ben 23 | No Watch Ben | Gwen 10

Other Characters
Spellbinder | Tetrax Shard | Sir George | Lucy Mann | Julie Yamamoto | Kai Green | Jimmy Jones | Ken Tennyson | Clyde Fife | Fistina | Reinrassic III | Kwarrel | Skurd | Devlin Levin | Zed | Baz-El | Ship

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