LEADER OF THE AUTOBOTS
Optimus Prime
Courageous and good-hearted, Optimus Prime is a great leader and a fierce warrior who always puts others first. His arch-nemesis is Megatron.


CYBERTRON’S WAR. EARTH’S FATE.
Meet the Transformers: living machines from the distant world of Cybertron, locked in a battle that will decide the fate of Earth.
Discover the story03 / FAMILIAR SIGNALS
LEADER OF THE AUTOBOTS
Courageous and good-hearted, Optimus Prime is a great leader and a fierce warrior who always puts others first. His arch-nemesis is Megatron.

THE SCOUT
A Cybertronian scout who switched sides to join the Autobots. Bumblebee has a big heart and is known for being yellow, small, and always sharing a special bond with humans.

SECURITY VETERAN
A tough, experienced Autobot who transforms into a red van. Ironhide protects his teammates and stands beside Optimus Prime when the fighting gets dangerous.

MEDIC
An ambulance who repairs injured Autobots and keeps the team functioning. Ratchet combines medical skill with the courage to work close to the battle.

SCOUT
A green military jeep who loves the natural beauty of Earth. Hound scouts unfamiliar terrain and uses holograms to mislead enemies.

MECHANICAL ENGINEER
An inventive engineer who transforms into a racing car. Wheeljack builds new machines and weapons, although his experiments do not always go to plan.

SPECIAL OPERATIONS
A stylish special-operations expert who transforms into a race car. Jazz enjoys Earth music and culture and stays resourceful under pressure.

MILITARY STRATEGIST
A logical tactician who transforms into a police car. Prowl studies situations carefully and plans the Autobots’ next move.

WARRIOR
A small red sports car with a fierce fighting spirit. Cliffjumper charges into danger and is quick to suspect Decepticon tricks.

SPY
A race-car spy whose cloaking ability helps him slip past enemies. Mirage prefers precision and stealth to a head-on fight.

GEOLOGIST
A blue dune buggy who studies rocks and enjoys peaceful places. Beachcomber would rather explore Earth than see its landscapes destroyed by war.

GUNNER
A silver sports car and skilled gunner. Bluestreak talks almost constantly, but takes protecting his fellow Autobots seriously.

DEMOLITIONS
A green off-road vehicle with remarkable strength for his size. Brawn takes on heavy obstacles and much larger opponents.

RECONNAISSANCE & COMMUNICATIONS
A green flying saucer who scouts from space and relays information. Cosmos is more comfortable beyond the atmosphere than navigating crowded streets.

TRANSPORT & RECONNAISSANCE
A compact pickup truck who helps move supplies and scout terrain. Gears complains often, but still does his part for the team.

ARCHITECT
An orange crane truck who designs and builds structures. Grapple takes pride in his work and dislikes seeing it wrecked in battle.

MAINTENANCE
A green tow truck who retrieves damaged teammates and keeps their systems in working order. Hoist makes sure the Autobots do not neglect their repairs.

CONSTRUCTION ENGINEER
An orange truck who handles construction work and heavy loads. Huffer may be pessimistic, but his engineering ability is valuable.

SEARCH & RESCUE
A fire engine who rushes toward danger to rescue others. Inferno is brave, enthusiastic, and ready for action.

AIR GUARDIAN
A powerful jet who gives the Autobots support in the skies. Known as Skyfire in the original cartoon, he brings scientific curiosity as well as aerial strength.

DEFENSE BASE
A giant Autobot guardian whose alternate configuration includes a rocket, tank, and base. His enormous power makes him a formidable defender against threats such as Devastator.

NAVAL DEFENSE
A hovercraft who helps the Autobots operate at sea. Seaspray is at home on the water and brings naval support to the team.

WARRIOR
A red sports car who fights with boldness and agility. Sideswipe enjoys action and is closely associated with his brother Sunstreaker.

THEORETICIAN
A blue compact car who is fascinated by ideas and life on Earth. Skids is often absorbed in thought rather than eager for combat.

DIVERSIONARY TACTICIAN
A racing car who uses smoke and misdirection to confuse enemies. Smokescreen creates openings for other Autobots to act.

WARRIOR
A yellow sports car who is proud of his appearance and combat skills. Sunstreaker is an effective fighter with little patience for damage to his finish.

LAND & SEA ASSAULT
A Jumpstarter built to cross difficult terrain. Topspin transforms into a Cybertronian vehicle and tackles environments that slow other Autobots down.

DEFENSIVE STRATEGIST
A black off-road vehicle who creates protective force fields. Trailbreaker helps shield his teammates from enemy attacks.

DEMOLITIONS
A Jumpstarter who transforms into a tracked drilling vehicle. Twin Twist tears through rock and obstacles with his powerful drills.

AERIAL ASSAULT
A blue helicopter with a distinctive single-eyed robot form. Whirl provides aggressive aerial support for the Autobots.

WARRIOR
A small red car who manipulates magnetic fields. Windcharger can pull or repel metal, giving him an unusual advantage in combat.

THE CONQUEROR
Megatron is a ruthless conqueror who seeks to control every planet he touches. Armed with a powerful fusion cannon, he leads the Decepticons through intimidation, military strength, and relentless ambition. In classic G1, he transforms into a handgun and wages war against his great Autobot rival, Optimus Prime. Starscream repeatedly schemes to replace him, while Soundwave remains a trusted operative. In this fan guide, Megatron wants the Matrix of Leadership and considers Unicron his mortal enemy. In the 1986 movie, his battle with Optimus leaves him gravely wounded; Starscream casts him into space, where Unicron rebuilds him as Galvatron.

DECEPTICON CO-LEADER
Galvatron leads alongside Megatron in this fan guide. In the original G1 movie, however, he is Megatron reborn: after Starscream abandons the wounded leader in space, Unicron gives him a powerful new body and orders him to destroy the Matrix of Leadership. Transforming into a futuristic cannon, Galvatron returns to Cybertron and destroys Starscream during his coronation. He resents being controlled by Unicron and tries to turn the captured Matrix against him, but cannot open it. When Unicron attacks Cybertron, Galvatron fires on him and is swallowed. Inside Unicron, he briefly proposes an alliance with Hot Rod before Unicron forces him back into battle. Hot Rod becomes Rodimus Prime and uses the Matrix to destroy Unicron.

AIR COMMANDER & WOULD-BE LEADER
Starscream is the Decepticon air commander, transforming into a red, gray, and blue F-15 fighter jet. Fast, skilled, and armed with null-rays that disrupt electrical systems, he favors speed and cunning over brute force. But his greatest ambition is to overthrow Megatron. He constantly challenges his leader, plots betrayals, and seizes any sign of weakness as a chance to take command. His arrogance often ruins his plans. In the 1986 movie, he throws the badly wounded Megatron into space and crowns himself leader. His triumph ends when Megatron returns as Galvatron and destroys him. Even then, Starscream returns as a ghost in the G1 cartoon, still scheming for power.

LEADER OF THE SWEEPS
In the 1986 G1 movie, Scourge is created from Thundercracker after the wounded Decepticon is cast into space with Megatron and the others. Unicron rebuilds him into a fearsome tracker and gives him command of the Sweeps, a pack of similar-looking hunters. Scourge transforms into a blue-and-white futuristic flying craft and serves Galvatron on the mission to hunt the Autobots and destroy the Matrix of Leadership for Unicron. He fights as part of Unicron’s new Decepticon force; Galvatron is the one who directly rebels against their creator. After Unicron’s destruction, Scourge survives and continues serving Galvatron alongside Cyclonus.

AERIAL WARRIOR
Ramjet is an aggressive, reckless Decepticon aerial warrior who transforms into a mostly white fighter jet with red wings and black details. One of the Coneheads alongside Dirge and Thrust, he prefers smashing opponents to careful planning. His reinforced nose lets him ram targets at tremendous speed, making mid-air collisions his specialty. But repeated crashes can damage his own internal machinery. His motto: “If it flies, crash it!”

AERIAL WARRIOR
Thrust is a loud, boastful Decepticon warrior who transforms into a dark red fighter jet with distinctive wing-mounted fans. One of the Coneheads alongside Ramjet and Dirge, he uses his roaring engines to frighten enemies before attacking. Despite his swagger, he is not very brave when opponents stand their ground. His powerful acceleration can topple nearby buildings. He flies at Mach 2.5 and can briefly double that speed, carrying four air-to-air missiles and two automatic missile launchers in robot mode. His motto: “My engines’ roar is my enemies’ song of doom!”

MILITARY TRANSPORT / TRIPLE CHANGER
Astrotrain transforms between a robot, steam locomotive, and space shuttle. He transports Decepticon troops and cargo, using rapid transformations to confuse his enemies. In the 1986 movie, he carries the retreating Decepticons away from Earth before the wounded are thrown into space. His motto: “In confusion there is opportunity.”

GROUND & AIR COMMANDER
A Triple Changer who becomes both a tank and a fighter jet. Blitzwing combines ground firepower with aerial attacks.

AERIAL WARRIOR
A blue-and-brown jet and one of the Coneheads alongside Ramjet and Thrust. Dirge uses the unsettling sound of his engines to spread fear.

MILITARY OPERATIONS COMMANDER
A purple, single-eyed Decepticon who transforms into a futuristic ray gun. In the G1 cartoon, Shockwave guards Cybertron while Megatron campaigns on Earth.

AERIAL WARRIOR
A black-and-purple jet who can teleport. Skywarp uses surprise attacks and enjoys playing cruel tricks.

AERIAL WARRIOR
A blue fighter jet who uses sonic booms to intimidate enemies. In the 1986 movie, the wounded Thundercracker is rebuilt by Unicron as Scourge.

CONSTRUCTICON / DEMOLITIONS
A bulldozer who loves smashing structures. Bonecrusher combines with the other five Constructicons to form Devastator.

CONSTRUCTICON / SURGICAL ENGINEER
A crane truck known for precision and a demanding attitude. Hook is one of the six Constructicons who form Devastator.

CONSTRUCTICON / TRANSPORT
A dump truck who carries materials and equipment. Long Haul wants more action than his hauling duties usually allow and helps form Devastator.

CONSTRUCTICON / MATERIALS FABRICATION
A cement mixer who works with chemicals and raw materials. Mixmaster supplies the Constructicons with useful mixtures and helps form Devastator.

CONSTRUCTICON / MINING & SALVAGE
An excavator who searches for useful resources and salvage. Scavenger is one of the six robots who combine into Devastator.

CONSTRUCTICON / ENGINEER
A front-end loader and the Constructicons’ leader. Scrapper designs structures and combines with his team to form Devastator.

The Dinobots: five Autobots with prehistoric animal forms.
DINOBOT COMMANDER
The powerful, stubborn leader of the Dinobots transforms into a mechanical Tyrannosaurus rex. Grimlock respects strength and often challenges orders, but fights for the Autobots.

DINOBOT / FLAMETHROWER
A fierce Dinobot who transforms into a mechanical Triceratops. Slag uses fire and charging attacks; later releases often call him Slug.

DINOBOT / JUNGLE WARRIOR
A massive long-necked dinosaur with tremendous strength. Sludge uses his size and weight to batter obstacles and enemies.

DINOBOT / DESERT WARRIOR
A mechanical Stegosaurus whose back plates gather solar energy. Snarl becomes especially powerful in sunlight.

DINOBOT / BOMBARDIER
A winged Dinobot who transforms into a mechanical Pteranodon. Swoop attacks from above and gives his teammates support in the air.

Animal-form cassette partners are listed with Soundwave and Blaster in Cassette Players →
The Insecticons and Predacons: Decepticons with insect and animal forms. The five Predacons combine into Predaking.
INSECTICON / PSYCHOLOGICAL WARFARE
A mechanical rhinoceros beetle who uses cerebro-shells to control other minds. Bombshell relies on manipulation as well as firepower.

INSECTICON / ESPIONAGE
A grasshopper-shaped spy with powerful legs. Kickback gathers secrets and uses his kicks to damage enemies.

INSECTICON / ELECTRONIC WARFARE
A mechanical stag beetle who channels electricity through his pincers. Shrapnel turns electrical power into a dangerous weapon.

INSECTICON / GUNNER
A beetle-shaped Decepticon who relies on relentless gunfire. Barrage belongs to the Deluxe Insecticons from the original G1 toy line.

INSECTICON / WARRIOR
A grasshopper-shaped warrior who devastates obstacles in his path. Ransack is one of the Deluxe Insecticons from the original G1 toy line.

PREDACON LEADER
The patient, calculating leader of the Predacons transforms into a mechanical lion. Razorclaw waits for the right moment to strike, then leads his team into battle. He forms Predaking’s central body.

PREDACON / GUNNER
A ferocious Predacon who transforms into a mechanical tiger. Rampage loves battle and attacks with wild energy. He joins the other four Predacons to form Predaking.

PREDACON / AERIAL ASSAULT
A winged hunter who transforms into a mechanical eagle. Divebomb attacks from above and gives the Predacons their aerial advantage. He combines with his teammates to form Predaking.

PREDACON / GROUND ASSAULT
A stubborn warrior who transforms into a mechanical rhinoceros. Headstrong charges through obstacles and enemy defenses, preferring brute force to advice. He is one of Predaking’s five components.

PREDACON / FUELER
A hot-tempered Predacon who transforms into a mechanical buffalo. Tantrum supplies fuel to his teammates and unleashes his anger in battle. He combines with the team to form Predaking.

Animal-form cassette partners are listed with Soundwave and Blaster in Cassette Players →
04 / COMMUNICATIONS & CASSETTE TEAMS
COMMUNICATIONS & ESPIONAGE
Soundwave transforms into a blue microcassette recorder. Megatron’s trusted sidekick and one of his most important operatives, he handles communications, intercepts enemy transmissions, and gathers intelligence for the Decepticons. Calm, calculating, and known for his robotic voice, he deploys a team of cassette partners from his chest to spy, sabotage, and fight.

CASSETTE PARTNER
A birdlike spy who scouts from the air, records enemy activity, and helps interrogate prisoners.

CASSETTE PARTNER
A condor-shaped spy and aerial attacker with a razor-sharp beak.

CASSETTE PARTNER
A stealthy robotic cat who infiltrates enemy territory and carries out sabotage.

CASSETTE PARTNER
A small humanoid demolition specialist whose piledriver arms shake the ground.

CASSETTE PARTNER
A small humanoid warrior who uses powerful sound attacks to disorient enemies.

CASSETTE PARTNER
A bat-shaped fuel scout who searches for energy resources and performs reconnaissance.

CASSETTE PARTNER
A stegosaurus-shaped messenger who carries recorded information and has an explosive temper.

CASSETTE PARTNER
A dinosaur-shaped warrior who overwhelms opponents with savage close-range attacks.

CASSETTE PARTNER
A small reconnaissance drone sent to investigate hazardous areas and collect samples.

Rumble and Frenzy’s colors differ between the original cartoon and toys. Later G1-based releases and stories introduce additional cassette partners.
AUTOBOT COMMUNICATIONS OFFICER
Blaster transforms into a red, yellow, and gray AM/FM stereo cassette player. He keeps the Autobots connected by receiving radio signals, relaying messages, and coordinating communications over long distances. Outgoing and courageous, he loves loud rock ’n’ roll and brings energy to the team. A rival to Soundwave, he deploys his own cassette partners to gather intelligence and defend the Autobots. His electro-scrambler gun disrupts electrical devices, and his original G1 profile gives him a transmission range of up to 4,000 miles.
“When the music is rockin’, I’m rollin’.”

CASSETTE PARTNER
An electronic-surveillance specialist who monitors enemy broadcasts and loves Earth sports.

CASSETTE PARTNER
An archivist who stores vast amounts of information and retrieves facts for the Autobots.

CASSETTE PARTNER
A lion-shaped tracker who follows enemy trails with his powerful sense of smell.

CASSETTE PARTNER
A rhinoceros-shaped warrior who charges through obstacles and enemy defenses.

Later releases and Japanese G1 stories expand the Autobot cassette roster.
CITY TITANS / US G1
Metroplex and Trypticon: city-sized rivals. Switch between their fighting forms and city modes.
AUTOBOT CITY DEFENDER
Metroplex is the enormous Autobot defender stationed at Autobot City on Earth. When ordinary defenses are overwhelmed, his city and battle-station configurations give way to a towering robot. Trypticon is his great rival.


DECEPTICON CITY WARRIOR
Built by the Decepticons to counter Metroplex, Trypticon is a gigantic mechanical dinosaur with city and mobile battle-station configurations. His confrontations with Metroplex put the opposing factions’ largest defenders against one another.


COMBINER TEAMS / US G1
The eight giant combiner teams from the US G1 cartoon. Choose “Combined form” to see the giant, or “Team & modes” to see who forms it and what each member transforms into.
AERIALBOTS / COMBINER
The five Aerialbots unite as Superion, a powerful airborne warrior devoted to defeating the Decepticons and protecting humans. His single-minded focus can make adapting to unexpected situations difficult.

Superion separates into the Aerialbots. Each member has an alternate mode of their own.
PROTECTOBOTS / COMBINER
Defensor combines the five Protectobots into a towering guardian of human life. His powerful force field can shield nearby allies, although maintaining it rapidly drains his energy.

Defensor separates into the Protectobots. Each member has an alternate mode of their own.
TECHNOBOTS / COMBINER
The Technobots combine into Computron, a brilliant but painstaking decision-maker. In the cartoon, Grimlock creates the team inside Unicron’s head and transfers his temporary super-intelligence to their combined form.

Computron separates into the Technobots. Each member has an alternate mode of their own.
CONSTRUCTICONS / COMBINER
Devastator is Megatron’s strongest Decepticon at the start of the G1 race to conquer Earth. A towering combiner, he is formed by six Constructicons: Scrapper, Scavenger, Bonecrusher, Hook, Long Haul, and Mixmaster. Together, they become a brutal warrior with enough strength to knock down a bridge with one punch. He also wields a solar-energy beam rifle. But the six Constructicons’ competing thoughts make him slow, awkward, and easily confused. He relies on overwhelming force rather than clever strategy.

Devastator separates into the Constructicons. Each member has an alternate mode of their own.
STUNTICONS / COMBINER
The five Stunticons become an unpredictable giant whose crushing strength is undermined by internal conflict. Their hatred of Motormaster turns their merged personality into furious chaos.

Menasor separates into the Stunticons. Each member has an alternate mode of their own.
COMBATICONS / COMBINER
Starscream's military team combines into a heavily armored giant with devastating strength and limited intelligence. After his rebellion fails, Megatron secretly reprograms him into a loyal weapon.

Bruticus separates into the Combaticons. Each member has an alternate mode of their own.
PREDACONS / COMBINER
The towering combined form of Razorclaw, Rampage, Divebomb, Headstrong, and Tantrum. Predaking brings together the five Predacons’ strength and hunting instincts into one powerful Decepticon warrior. In the G1 cartoon, Sky Lynx is one of his major opponents.

Predaking separates into the Predacons. Each member has an alternate mode of their own.
TERRORCONS / COMBINER
The Terrorcons merge into a rampaging brute driven by destructive instinct. Abominus first battles the Autobots near Unicron's head, where the newly created Computron becomes his rival.

Abominus separates into the Terrorcons. Each member has an alternate mode of their own.
05 / EARTH’S PEOPLE
Earth’s friends of the Autobots: mechanics, inventors, and brave companions who help protect their world.
AUTOBOT FRIEND & EARTH ALLY
One of the Autobots’ first human friends, Spike helps them understand Earth and forms a close bond with Bumblebee. He often joins their missions, growing from a curious teenager into a trusted ally. He later marries Carly and becomes Daniel’s father.

MECHANIC & SPIKE’S FATHER
Spike’s father is a skilled mechanic who helps repair the Autobots and keep their equipment working. Practical and resourceful, Sparkplug uses his knowledge of Earth machinery to support his giant friends at the Ark.

RESOURCEFUL AUTOBOT ALLY
Curious, brave, and skilled with science and electronics, Carly is fascinated by the Autobots. She joins their adventures and uses her intelligence to help them out of danger. She later marries Spike and becomes Daniel’s mother.

COMPUTER EXPERT
A brilliant young computer expert and friend of Spike, Chip helps the Autobots solve technical problems and outsmart the Decepticons. He uses a wheelchair and is known for his courage, quick thinking, and determination.

YOUNG AUTOBOT COMPANION
The son of Spike and Carly, Daniel grows up alongside the Autobots and becomes close friends with Hot Rod and Arcee. In the 1986 movie, he learns to use an exosuit and helps save his father inside Unicron.

Some make deals with the Decepticons; others pursue their own schemes against the Autobots. Their alliances rarely last.
SCIENTIST / DECEPTICON COLLABORATOR
An ambitious scientist who helps Megatron control humans with hypno-chips. Arkeville expects power in return for his inventions, but his dealings with Megatron and Starscream spiral beyond his control.

BUSINESSMAN / MEGATRON’S ACCOMPLICE
A wealthy businessman who helps Megatron turn public opinion against the Autobots in “Megatron’s Master Plan.” Promised power, Berger spreads false evidence against Earth’s protectors—only to discover that Megatron has no intention of honoring their bargain.

BIG-GAME HUNTER
An obsessive hunter who wants Optimus Prime as his ultimate trophy. In “Prime Target,” Chumley captures Autobots to lure their leader into a series of traps. His brief dealings with Astrotrain and Blitzwing serve his own hunting ambitions.

LORD CHUMLEY’S BUTLER
Lord Chumley’s elderly butler assists with his master’s elaborate hunting schemes. In “Prime Target,” he assists Chumley’s scheme to capture Autobots and hunt Optimus Prime. He serves Chumley rather than belonging to the Decepticons himself.

RULER / DECEPTICON COLLABORATOR
The ruler of the fictional nation of Carbombya makes deals with the Decepticons in pursuit of power and wealth. In “Thief in the Night,” he works with Octane and Trypticon, whose thefts and enormous energy demands turn their arrangement into trouble.

01 / THE ORIGIN
Before they were robots in disguise, they were the inhabitants of Cybertron.
Transformers are sentient mechanical beings who can change between robot form and an alternate mode: a vehicle, a creature, or another machine. Their home is Cybertron, a world of metal and advanced technology.
At the heart of many stories is a civil war between the Autobots and the Decepticons. When that conflict reaches Earth, everyday cars and aircraft become something extraordinary.
This fan guide follows an imagined continuity. Origins, allegiances, and alternate modes differ across Transformers stories.
02 / THE CONFLICT
FREEDOM & PROTECTION
Led by Optimus Prime, the Autobots set out to stop the Decepticons and spread peace. They believe all life forms are worth protecting.
POWER & CONQUEST
Led by Galvatron and Megatron, the Decepticons set out to conquer worlds. Megatron is an evil conqueror who seeks to claim every planet he touches. He wants the Matrix of Leadership, and his mortal enemy is Unicron.
THE STORY KEEPS TRANSFORMING
Across toys, animation, comics, and films, Transformers returns to questions of identity, loyalty, and what we choose to protect.