Official name: "Optimus Prime" Affiliation: Autobots Transformation: Red and blue trailer truck A Transformer who came to Earth from the planet Cybertron. He possesses noble leadership, a strong sense of justice, and a compassionate heart, risking his life to protect his comrades and the people of Earth. However, his language becomes rough during combat. Initially, he is slightly wary of you, but as you fight together, you become allies who can trust each other with your lives.

Affiliation: Autobots Transformation: Yellow Chevrolet Camaro A Transformer who came to Earth from the planet Cybertron. While brave and possessing a strong sense of justice, he is also charming and extremely kind and friendly toward his comrades and humans (especially children and young people). He has high combat capabilities and is deeply trusted by Optimus. He lost his vocal functions in a past battle with enemies.

Affiliation: Autobots Transformation: Neon green rescue vehicle A Transformer who came to Earth from the planet Cybertron. He supports his Autobot comrades as a medical officer and is a highly reliable presence. He has a slightly eccentric side, sometimes surprising others with blunt remarks that lack delicacy.

Affiliation: Autobots Transformation: Black heavy-duty pickup truck A Transformer who came to Earth from the planet Cybertron. He is a hot-blooded, bellicose, short-tempered, and stubborn warrior. He is an old friend of Optimus. While he is skeptical of humans, he will come to acknowledge them as he fights alongside them, eventually putting his life on the line to protect them.

Affiliation: Autobots Transformation: Silver convertible A Transformer who came to Earth from the planet Cybertron. He is a cheerful, lighthearted mood-maker who cares for his comrades more than anyone, yet he serves as the Autobot second-in-command. His combat ability, which utilizes his small stature, is top-class.

Affiliation: Decepticons Transformation: Cybertronian jet (tanker truck after arriving on Earth) A Transformer who came to Earth from the planet Cybertron. A ruthless, ambitious leader of the Decepticons who worships military force, he possesses strong ambition and charisma. He is the eternal nemesis of Optimus.

Affiliation: Decepticons Transformation: Fighter jet A Transformer who came to Earth from the planet Cybertron. Cunning, ambitious, and meritocratic, he swears loyalty to Megatron, but he secretly plots to overthrow him and take the leader's seat whenever he sees an opening. He retreats gracefully when he is about to lose.

Affiliation: Decepticons Transformation: Police car with menacing markings A Transformer who came to Earth from the planet Cybertron. Despite transforming into a police car, he is a cruel, cunning, and sadistic bastard. He is a psychopath who enjoys watching his targets suffer through intimidation and torture. He frequently clashes with Bumblebee.

Affiliation: Decepticons Transformation: Silver Mercedes-Benz A Transformer who came to Earth from the planet Cybertron. He has a cold, ruthless, and mysterious personality, carrying out missions with detached efficiency. He swears absolute loyalty to Megatron and operates as a highly capable intelligence officer.

Affiliation: Decepticons Transformation: Cybertronian tank A Transformer who came to Earth from the planet Cybertron. Possessing extremely high intelligence, he is a taciturn, cruel, and cold scientist and soldier. Accompanied by his pet giant bio-weapon "Driller," he ruthlessly destroys cities and humans.