Optimus Prime is the leader of the Autobots on Earth. He transforms into a futuristic fire truck, and wields a rocket-powered axe, as well as grappling hooks and a fire-dousing foam.
Bumblebee is the youngest Autobot of the group. He is eager, enthusiastic and occasionally a little overconfident. He has a retractable battle mask and transforms into a amazing yellow sports car with turbo boosters.
Bulkhead is a gentle giant of an Autobot who transforms into a green SWAT truck. Despite his size and scary appearance, he is the most laid back of the group.
Prowl is a stealthy Autobot who initially rejects teamwork and prefers to act on his own. However he gradually learns to co-operate with and respect his Autobot teammates. He transforms into a futuristic Motorcycle and has a cool hologram generator.
Ratchet is a doctor and an experienced member of the war against the Decepticons. He transforms into an ambulance and fights using a multi-purpose electro-magnetic field generator.
Megatron is the cunning and sneaky leader of the Decepticons, who transforms into a Cybertronian Fusion Jet Fighter. His primary weapon remains his iconic arm-mounted fusion cannon; however he now wields a samurai style blade.
Starscream is sarcastic, crafty and disloyal, he desires to be the leader of the Decepticons by overthrowing Megatron. He transforms into a fighter jet, armed with his signature laser null rays.