Optimus Prime is the awe-inspiring leader of the Autobots. Selfless and endlessly courageous, he is the complete opposite of his mortal enemy Megatron. Originally a mere civilian, he was chosen by the Matrix to command, the first in a number of heavy burdens he has been forced to bear. Another is his bringing of the Transformers' conflict to Earth. Every casualty, human or Cybertronian, weighs heavily on his spark. He does not show this side to his soldiers, and he never succumbs to despair.