BUMBLEBEE is the AUTOBOT who's been on planet Earth the longest. So he knows humans best, which helps explains why he's so serious about looking after RAFAEL ESQUIVEL. 'Bee's' voicebox was damaged on CYBERTRON, so he 'talks' in bleeps and blurts. He may make mistakes, but he's always eager to please OPTIMUS PRIME.
Before he was the silent warrior he is today, BUMBLEBEE was a nonstop chatterbox, charged with carrying the most vital AUTOBOT communications. He was a fearless infiltrator of enemy lines who stuck to the shadows and faded into the background despite his bright yellow armor. His spirit was unbreakable and his friendly humor was invaluable during the first dark days of the war.
BUMBLEBEE has spent decades perfecting his fighting skills. With or without weapons, he is one of the most skilled fighters the AUTOBOT have. He is dedicated to using his skills to defeat the DECEPTICONS, no matter where they appear.