Bumblebee is the "little brother" and mascot of the Autobot faction in the Transformers franchise. Constantly striving to prove himself to the other Autobots, especially Optimus Prime, Bumblebee often takes risks that put him in danger.
The smallest and youngest of the first generation Autobots (depending on which media is referenced), Bumblebee befriends the Autobots' primary human ally, Sam Witwicky.