Optimus Prime is a stern and serious commander, devoted to protecting freedom and innocent life. He has seen the galactic path of conquest and destruction already burned by Megatron and swears it will not include Earth. Optimus Prime often finds himself in the role of "straight man" to the more comic stylings of the other Autobots and Predacons, and tends to treat their humorous exaggerations or personality quirks as statements of straightforward fact. His subordinates view him as a great leader, if stubborn and much too prone to long speeches. Optimus Prime's greatest weakness is his sense of nobility. If an adversary claims to have had a change of heart and discovered inner goodness, Prime will fall for it every single time.