Transformers 5 Robot Cast Final for 2017 - The Last KnightDrift, an Autobot tactician and a former Decepticon who transforms into a black and red 2017 Mercedes-AMG GT-R br br Bumblebee, an Autobot scout who transforms into a custom-built yellow and black 2016 Chevrolet Camaro br br Peter Cullen voices Optimus Prime, the leader of the Autobots, who transforms into a blue and red Western Star 5700 XE and is searching for the truth about his Creators br br Crosshairs, an Autobot paratrooper who transforms into a green 2016 Chevrolet Corvette C7 Stingray equipped with a new spoiler. br br Hot Rod, a brash and arrogant Autobot who is brother-in-arms with Bumblebee.