Optimus Prime (Earth-1984)

Optimus Prime (originally Orion Pax) is the leader of the Autobots during a Cybertronian civil war on Cybertron. He and his Autobot followers crash-landed on Earth in the final day of war on Cybertron through a space bridge and have been stranded ever since. He and the Autobots came to be in the Primevalverse due to reality manipulation caused by the Tesseract.