Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki
Grey Matter
Official AOV Grey Matter
General Information
Species Galvan
Home World Galvan Prime/Galvan Mark II
Body Humanoid
Powers and Abilities
Abilities Super intelligence
Immense Life Span
Wall Crawling
Enhanced Agility
Underwater Breathing

Grey Matter is the Simplicitrix's (and possibly the Alpha-Omegatrix's) DNA sample of a Galvan from the planets Galvan Prime and Galvan Mark II.


Grey Matter has a red jumpsuit with a black belt, his collar is black, and the Simplicitrix symbol is on his back. He has green skin, and a grey-white mask-like design on his face.

Grey Matter Debut

Grey Matter in (Faded Memories) Credits to Solo28 for base.


Grey Matter's size belies his great calculative and technical intellect. He can create almost anything from spare parts and know the function of any device at a glance. Grey Matter's intellect serves as a problem solver and analytical help in difficult situations.

Grey Matter can sometimes manipulate living things by stimulating certain parts of their anatomy, if such beings can be controlled by external stimuli.

Grey Matter's size allows him to squeeze into small spaces and he can climb walls thanks to tiny suction cups on his skin. He also has sharp teeth and his slimy skin makes him difficult to grab.

Grey Matter is stronger than he looks.

Grey Matter is amphibious and has gills.


Grey Matter's size makes him unsuitable for physical battle, so he must outsmart his enemies in a fight.

Animals like dogs and cats can be a problem, as they may see Grey Matter as food or toy.





  • He has yet to appear in Alpha-Omegatrix, but Galvan DNA has been used.
  • It is confirmed he is Richard's least favorite alien, but will use him if needed.
    • He is no longer his least favorite, as that role has been taken by Pesky Dust.

See also[]