* Optimus Prime: The leader of the Autobots, Optimus Prime is a wise and noble warrior who fights for peace and freedom.
* Bumblebee: A scout and skilled fighter, Bumblebee is Optimus Prime's trusted lieutenant. He is a close friend to Sam Witwicky.
* Ironhide: A tough and experienced warrior, Ironhide is the Autobots' chief weapons specialist.
* Ratchet: The Autobots' medic, Ratchet is a skilled surgeon and a compassionate soul.
* Sideswipe: A sleek and agile fighter, Sideswipe is known for his speed and agility.
* Arcee: A skilled warrior and one of the few female Autobots, Arcee is known for her speed and agility.
* Wheeljack: A brilliant inventor and engineer, Wheeljack is responsible for developing many of the Autobots' advanced weapons and technology.
* Dino: A fierce and powerful warrior, Dino is the Autobots' strongest member.
* Skids: A streetwise and sarcastic Autobot, Skids is known for his quick wit and his ability to adapt to any situation.
* Mudflap: Similar to Skids, Mudflap is a bit more simple but enjoys humor and camaraderie.
Note: Mudflap and Skids were controversial in the film due to some perceived stereotypes. Many fans were unhappy with the depiction of these characters and the way they were handled.