Optimus Prime

Optimus Prime is the Autobot Leader and Cybertronian protagonist of the whole film series.

Optimus Prime arrives on Earth as the leader of the Autobots in the search for the All Spark. Prime battles several Decepticons throughout the film, killing Bonecrusher and dueling Megatron before Sam kills the Decepticon by ramming the All Spark into his chest. Prime, who planned to destroy the All Spark by sacrificing himself, is grateful to Sam for saving him. Like the other Autobots featured in the film, he chooses to remain on Earth after the battle with the Decepticons, and the film ends with Optimus sending out a deep-space signal, inviting other Autobots to join them on Earth.

He returns in Transformers: Revenge of the Fallen, taking down in Shanghai, China, the massive Decepticon Demolishor. He later fights and overpowers Megatron, Starscream and Grindor on his own to protect Sam; though he manages to kill Grindor, and rip Starscream's arm off, Optimus is destroyed by Megatron. Sam later revives Optimus using the Matrix so that he can fight The Fallen. With the help of Ratchet, [Jolt]], and parts from Jetfire, Optimus successfully kills the Fallen, forcing Megatron and the Decepticons to retreat. At the end of the film, he again transmits a message to space, hoping to find more Autobots.

Optimus appears in the 2011 film Transformers: Dark of the Moon. When Optimus learns that the humans have concealed the discovery of a Cybertronian ship on the moon he and Ratchet investigate. They recover Sentinel Prime, who Optimus returns to life using the Matrix. After Sentinel Prime betrays him over his obessesion with wanting to restore Cybertron, he insists the Earth expel the Autobots the Wreckers prepare the Autobot ship Xantium for flight.The Autobots escape in the first booster stage and return to Earth before Starscream destroys the ship. After killing Shockwave, Optimus kills Megatron and Sentinel at the end of the film, but has his arm chopped off by Nemisis when fighting him.

Voice Actor

 * Peter Cullen