tmnt comics donatello bst axn figure comicDonatello (Don or Donnie) is the brain of the group. He has an awesome ability to understand how things work anything! From computer robotics, combustion engines, rocket propulsion systems, to the light in the fridge, and more, Donnie's a certified, self taught genius! Featuring Donatello's original comic appearance, from before the brothers began using coloured masks.