Cheetor was a maximal soldier who served in the Beast Wars and the war on Cybertron in Beast Machines. When he landed on Prehistoric Earth, he took the form of a cheetah and took the name Cheetor. He is the one few to survive all the way to the end of both series. He is the youngest and the immature one of the Maximals and he looks up to everyone as an idol. He looks up to Optimus Primal as a true leader and tries very hard to impress him. When Tigatron and Airazor joined the war, Cheetor became very close to them as well. He was one of the few to become a transmetal, given the ability to fly and also become a Transmetal II.