![Grey Matter (Classic)/Gallery | Ben 10 Wiki | FANDOM powered by Wikia | Ben 10, Ben 10 ultimate alien, Ben 10 birthday Grey Matter (Classic)/Gallery | Ben 10 Wiki | FANDOM powered by Wikia | Ben 10, Ben 10 ultimate alien, Ben 10 birthday](https://i.pinimg.com/originals/bd/19/48/bd1948c48e35de37c7b76285d90ccae7.png)
Grey Matter (Classic)/Gallery | Ben 10 Wiki | FANDOM powered by Wikia | Ben 10, Ben 10 ultimate alien, Ben 10 birthday
![Redesign #5] 5 down, 5 to go! Here's a redesigned 15-Year-Old Grey Matter, for my upcoming comic Ben 10: Omnitrix Awakened! : r/Ben10 Redesign #5] 5 down, 5 to go! Here's a redesigned 15-Year-Old Grey Matter, for my upcoming comic Ben 10: Omnitrix Awakened! : r/Ben10](https://i.redd.it/nse1138jfj761.png)
Redesign #5] 5 down, 5 to go! Here's a redesigned 15-Year-Old Grey Matter, for my upcoming comic Ben 10: Omnitrix Awakened! : r/Ben10
![Stream Grey Matter theme - Ben to the Rescue (Ben 10 game soundtrack) by Uncle_Drago | Listen online for free on SoundCloud Stream Grey Matter theme - Ben to the Rescue (Ben 10 game soundtrack) by Uncle_Drago | Listen online for free on SoundCloud](https://i1.sndcdn.com/artworks-5zgVSje3qxmkxPXY-pwVnIw-t500x500.jpg)