Optimus prime

Optimus Prime leads the autobots an dis a general of The light side. he died on the planet of Jurassicark the home world of the dinosaurs by the hands of Megatron but he was brought back by the Matrix of Leadership.

he first showed up along with the Autobots at the battle of Ark bridge were he battled Megatron on the bridge in a one vs one, which he won but he lost his arm during the fight. later on during the battle of Mars he was forced to kill thunder cracker after he went after innocent civilians, this is the first time he showed up in Unsc territory. he later on after looking out over a skirmish standing next to Rachet he asked him "How many of our brothers must die during this war" Rachet couldn't respond. during the first battle of reach he fought and killed the Indominus rex.

there are multiple other Optimus'. Optimus minor (animated), optimus maximus (TFP optimus), and Optimus terminus (G1).