This emergency medical truck is the Autobots' medic. Ratchet fixes limbs and gears, and he works to make do with less and less Energon. He knows Optimus Prime best, but he doesn't want the Autobots risking their necks to protect humans, and he DEFINITELY doesn't want the other Autobots bringing them into the secret base. Deep down, though, Ratchet admires what the humans bring to the fight against the Decepticons.
Leader of the Decepticons, he's as bad as the Autobots' leader is good. Whether in alien fighter jet form or robot mode, Megatron's the most evil and deadly of all the Transformers. He despises how much Optimus Prime cares about Earth and its weak humans, so he won't stop until he defeats ALL the Autobots and makes this planet his own.
He was just a hard-working kid slinging burgers to save up for his dream...a motorcycle. Then Jackson 'Jack' Darby meets Arcee, his guardian Autobot and his dreams come true. Talk about SCORE! Jack gains a killer bike AND a big sister all in one. With pals Miko and Raf, he helps the Autobots fight the Decepticons. Jack's usually smart and responsible, guess that makes him a leader ... except when he wants to impress a girl.