Grey Matter is one of the many alien forms that Ben Tennyson can
turn into. It is of the species Galvan, a gray-skinned small humanoid alien with large yellow eyes. Like all Galvans, Grey Matter has amazing intelligence capable of calculation and intuition with technology. It is also able to climb walls and cling to the surfaces of the ceiling.
Created by UltimateCharm on Dec 10 2012
Special thanks to Music Meister for additional sound clips.