Optimus Prime (Unicron Trilogy)

Like his incarnations in Transformers, Optimus Prime is the supreme leader of the Autobots and the arch-enemy of Megatron, the leader of the Decipticons. Optimus Prime in search for the minicons has traveled to the planet Earth alongside his growing group of comrades in order to stop the war between the Autobots and Decipticons. He is voiced by Gary Chalk (who also voiced Optimus Primal in Beast Wars and later portrayed Vice Principal Grimes in Scooby-Doo: The Mystery Begins), in the English adaptations of Transformers.