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Character list for Transformers.

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Recurring characters

While the Transformers get overhauled with every new incarnation, the characters tend to stay true to a few core traits, and there are iconic members among them who appear across multiple incarnations. The following is a list of some of these more prolific and recurring characters.

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    In General 

"Til all are one!"

The heroic faction of the Transformer race. While they of course all have varied personalities, the Autobots generally stand for justice, peace, and freedom, and are the main force opposing the Decepticons. They tend to adopt "civilian" alt modes like cars, trucks, and planes.

  • Arc Words: "Til All Are One", reflecting their desire for unity and peace no matter how long they have to fight for it.
  • Battle Cry: "Transform and roll out" is often used as their rallying cry, often shouted by Optimus.
  • Black-and-Gray Morality: Some later media depict the Autobot-ruled Cybertron as suffering from a Fantastic Caste System that oppresses lower-ranked Cybertronians. This is usually not by design, but a consequence of their society having roles and expectations of certain types of Transformer. The Autobot leaders aside from Optimus Prime may also be corrupt and self-serving. That said, even in these stories, the Autobots are still depicted as the more heroic faction compared to the Decepticons.
  • Good Is Not Soft: They may be the good guys, but don't think they can't and won't give the Decepticons a good fight.
  • The Hero: The Autobots as a whole are the heroes of the franchise.
  • La Résistance: In many depictions, the Autobots are mainly composed of scientists, doctors, civil servants, and civilians that have been forced into a war of survival against the fascistic Decepticons. Rather tellingly, before became Optimus Prime, Orion Pax usually has some humble job like a librarian or dockworker, not a soldier.
  • Meaningful Name: The live-action films state that "Autobot" is short for "autonomous robotic organism", while the comics say it's symbolic of their desire for a government that preserves the autonomy of the individual, contrasting the Decepticons, who desire a tyrannical government.
  • Red Is Heroic: The Autobot insignia is red, their technology often has a red/orange aesthetic, and many of their members are prominently red, including Optimus Prime of course.
  • Robot Superhero: The Autobots fight to protect each other, and other civilizations, from the Decepticons and Predacons respectively.

    Optimus Prime 

The main protagonist of the franchise and often the Big Good. As the leader of the Autobots (or at least, leader of the group the story is following), Optimus is considered one of their most honorable and courageous warriors. He will never give up until the Decepticons are stopped, no matter the cost. He often takes the alt-mode of a red and blue semi-trailer truck.

Sometimes, his role is assumed by a lookalike (God Ginrai or Optimus Primal).

  • All-Loving Hero: Optimus' compassion for other beings is almost limitless. While he wars with the Decepticons, he will show them mercy if he can. The one exception is Megatron, and even he may not be ruled out in some adaptations.
  • Badass Baritone: Optimus almost always has a deep, booming voice, the most iconic of which is Peter Cullen.
  • Big Badass Rig: His typical alt mode is a semi-trailer truck. Even when he isn't, Optimus tends to be some sort of large truck-like vehicle.
  • Big Good: Even when Optimus isn't the overall leader of the Autobots, he's one of their most respected members and the others will look to him for guidance and leadership.
  • The Chosen One: Optimus possess the Matrix of Leadership, designating him as leader of the Autobots and possibly some other destiny, depending on the incarnation.
  • Cool Sword: Another recurring weapon for this character.
  • Death Is Cheap: With a few exceptions, every time Optimus dies, he always tells Death "screw you" and comes back stronger. In Transformers: Animated, he was dead for all of 90 seconds.
  • Gentle Giant: He's often depicted as one of the largest of the rank-and-file Autobots, yet is one of the most humble and kind of any of them.
  • Heroic Sacrifice: Optimus often has to do this, though it may be turned into a Disney Death. "Optimus Dies" is such a cliche in Transformers that the wiki for the series has a page documenting how many times it's happened.
    Megatron (Beast Wars): "Oh, you Optimuses do love to sacrifice yourselves, don't you?"
  • Large and in Charge: As the leader of the Autobots, he is usually one of larger Autobots if not the largest of them all. And that is before he activates his Super Mode.
  • Meaningful Name: His name approximately means "Best of the best".
  • Meaningful Rename: In most incarnations, he was once Orion Pax, a humble Cybertronian with no aspirations of heroism. The name Optimus Prime tends to come hand-in-hand with him being promoted to a leader of the Autobots, discovering his heritage as a descendant of the Primes (the original 13 Transformers), or receiving a power boost that changes his appearance.
  • Messianic Archetype: Given his penchant for dying and coming back to life as as well as being the Big Good, he has some shades of this archetype. In recent installments (starting from Transformers: Prime), he even turns out to be the Thirteenth Prime, having reincarnated himself as an oridinary Cybertronian only to regain his memories.
  • Red Is Heroic: Optimus is almost always depicted with a red upper body and blue lower body, but red is his more predominant color and sometimes he's much more red than blue.
  • Series Mascot: Optimus is, without question, the one Transformer everyone can recognize immediately, if not necessarily the specific incarnation he is.
  • Super Mode: Occurs in various instances throughout the franchise. Sometimes he combines with his trailer while other times he combines with another Autobot (Godbomber/Apex Bomber, Ultra Magnus, Jetfire, Overload, Wing Saber, Omega Supreme, Leobreaker).

    Bumblebee/Hot Shot 

"Some of my best friends are humans."

An Autobot scout, Bumblebee is small but powerful, and just as determined and heroic as his more imposing comrades. He tends to have the closest relationship with the Autobots' human allies. His alt mode varies, but is always some sort of yellow car.

Depending on continuity, sometimes his role is assumed by Hot Shotnote , other times they're separate characters.

  • Blade Below the Shoulder: His iconic weapon is a retractable wrist-mounted blade.
  • Breakout Character: While Bumblebee was always part of the core cast of Autobots, the live-action films focused much more heavily on him than previous incarnations, and his prominence in later media was ramped up accordingly. After Optimus, Bumblebee is the most well-known and most heavily-marketed of the Transformers.
  • Kid-Appeal Character: Bumblebee is the former Trope Namer. His smaller size, more friendly personality than the stern Optimus, and close relationships with humans cements him in this role in most incarnations.
  • Number Two: While Jazz is usually depicted as Optimus' lieutenant in the Autobot hierarchy, Bumblebee is one of Optimus' most trusted soldiers and friends, and is the Autobot most likely to be trusted with important missions. In some media he takes over Jazz's typical role as Optimus' second-in-command.
  • Pint Sized Power House: He is usually smaller than most other Transformers, but no less powerful or brave, and can fight bots much larger than him and win.


"Have your own style of doing things or have none at all."

Optimus' first lieutenant and an aficionado of Earth culture, which is likely the reason for his unusual speech patterns among the Autobots. His alt mode is a white, red and blue Cool Car, emphasis on the Cool.

  • Cool Car: Jazz always transforms into some sort of sports car.
  • Cool Shades: He often has a mirrored visor over his eyes to give this impression.
  • Jive Turkey: Jazz tends to talk in hip, cool lingo.
  • The Lancer: As Optimus' lieutenant, Jazz is second-in-command of the Autobots, and his laidback and cool demeanor sharply constrasts Optimus' stern professionalism.
  • Meaningful Name: The cool, lingo-happy Autobot is called "Jazz".
  • Out of Focus: While Jazz has certainly not faded away, his prominence in later media has decreased as Bumblebee became the second-most pushed Autobot in marketing and adaptations, and accordingly he began supplanting Jazz as Optimus' right-hand Autobot in some media.
  • Token Minority: While the Transformers don't really have ethnicities, he is often voiced by African-Americans and talks in a lot of street lingo, making it clear he's intended to be perceived as the "black" Transformer.


The combat expert of the Autobots. When the Autobots need some muscle power, they call for Ironhide. His alt mode is usually some sort of truck, usually red.

  • The Big Guy: Tends to have this role, since he likes fighting and often has the firepower to be very good at it.
  • Blood Knight: There's nothing Ironhide likes more than busting up Decepticons.
  • BFG: While their exact design varies, Ironhide likes whatever weaponry he wields to be big and powerful. His film incarnation goes for dual Arm Cannons, while in the Unicron Trilogy he's sporting a pair of Shoulder Cannons.
  • Cool Car: He tends to transform into a pick-up truck, though his G1 incarnation was a slightly less cool minivan.
  • Good Is Not Soft: Ironhide is one of the most enthusiastic of all Autobots when it comes to getting into a fight. But he's still firmly heroic.
  • Red Is Heroic: Save for the live-action films, Ironhide has bright red as his predominant color.


"My old fashioned ways have saved plenty of servos."

The Autobots' chief medical officer, Ratchet is always there when the Autobots need repairs. His alt mode is some sort of emergency vehicle, most often an ambulance.

  • Combat Medic: His exact combat proficiency varies depending on the incarnation, but Ratchet is always at least able to join in the fight with the other Autobots.
  • Depending on the Writer: Perhaps more than any of the other core Autobots, Ratchet's personality can vary wildly between adaptations. He's been an Actual Pacifist who refuses to fight unless he must; a grumpy and snarky Dr. Jerk; a quiet professional who just doesn't open up to others; and more. He may or may not also demonstrate Fantastic Racism towards humans.
  • Disney Owns This Trope: His G1 incarnation used The Red Cross logo, which got their attention since they are very protective of their copyright. Subsequent appearances by Ratchet tend to have him using more lawyer-friendly logos, like a red cross with an Autobot crest in the center or a cardiogram.note 
  • Good Wears White: Since he turns into an ambulance, his usual color scheme is predominantly white and red.
  • The Medic: Provides the current trope image. His position in the Autobots is their medical officer.


The chief Autobot military strategist. His alt mode is always some sort of police vehicle, usually a car though sometimes a bike.

  • The Chessmaster: As a military strategist, Prowl is also an expert manipulator, though his manipulations sometimes come at the expense of the rest of the Autobots.
  • Cool Car: His alt mode is usually a police car.
  • Cool Shades: Sometimes has a mirrored visor over his eyes to give this impression.
  • Cyber Ninja: A trait exhibited by more recent iterations of the character.
  • The Lancer: Sometimes is the second-in-command to Optimus.
  • Out of Focus: Much like Jazz, his prominence in latter media has decreased. This is not only due to Bumblebee’s increased presence in media but also due to Barricade (whose most popular iteration ironically started out as an Evil Counterpart to Prowl) being equally recognizable as a police car bot.
  • Pragmatic Hero
  • The Spock: Usually the voice of logic and reason among the Autobots.
  • The Stoic


An Autobot engineer and inventor who comes up with a wide range of zany contraptions. His alt mode is usually a white car with red and green highlights, most iconically a Lancia Stratos.

  • Badass Driver: In addition to being an inventor, he also has a tendency to show off his driving skills.
  • Cool Car: His alt mode is usually a white car.
  • The Engineer: His primary function.
  • Genius Bruiser: Despite being the resident Mad Scientist of the Autobots, Wheeljack is oftentimes not afraid to enter the heat of combat and blow stuff up.
  • Mad Scientist: His primary characterization.
  • Red Oni, Blue Oni: He is the Mad Scientist (though his role is specifically The Engineer) to Perceptor's reserved scientist. This also carries into their fighting styles; while Perceptor prefers to fight at range, Wheeljack is not afraid to enter the thick of combat.
  • Stuff Blowing Up: The eventual fate of most of his inventions. It's also what happens whenever he enters battle.

    Sideswipe and Sunstreaker 

An Autobot trooper, Sideswipe tends to be reckless and eager to enter the heat of combat. His alt mode is always some sort of sports car, but most iconically a red Lamborghini.

Sometimes he has a sibling, Sunstreaker, who turns into a yellow Lamborghini.

    The Dinobots 
"Dinobots RULE!"

Five Autobots that have dinosaurs as their alt modes. Their usual lineup is as follows:

  • Grimlock (Tyrannosaurus rex)
  • Slug (Triceratops)
  • Sludge (Brontosaurus)
  • Snarl (Stegosaurus)
  • Swoop (Pteranodon)

  • Arch-Enemy: Are occasionally depicted as this to the Constructicons and Devastator, as they're some of the few Autobots (short of their own Combiners or Titans) able to give Devastator an even fight.
  • Badass Crew: The Dinobots are some of the most badass combatants on either side of the warlines, and as a team they're almost unstoppable.
  • The Big Guy: Collectively, the group is this for the Autobots. As strong as some of them can be, the Dinobots are the major muscle of the faction.
  • Blood Knight: All of them tend to be much more enthusiastic about violence than the other Autobots.
  • Combining Mecha: They sometimes possess the capability to combine into Volcanicus, an animalistic Autobot Combiner who strikes fear into the Decepticons.
  • Cool Sword: They're typically depicted as preferring swords to guns and blasters, though they have those too of course.
  • Did Not Do the Bloody Research: Slug was originally named "Slag", which is considered a curse word in the UK (in other English speaking countries, its a term for a junk metal byproduct that results from smelting or forging processes). Since Transformers media would later establish "slag" to be a curse word in-universe too, his name was changed to Slug in later appearances.
  • Dumb Muscle: The Dinobots are usually much, much stronger than other Transformers, and a lot dumber too.
  • Fragile Flyer: Swoop is the smallest and fastest of the Dinobots and the only one capable of flight in every version. While the Dinobots are heavily armored and mostly invulnerable in their dinosaur modes, Swoop is still very vulnerable to enemy fire when transformed into his Pteranodon form. His G1 bio explicitly mentions his wings as his Achilles' Heel, since damage to them will ground him and his Pteranodon mode is ungainly on land.
  • Hulk Speak: They talk this way on account of their limited intelligence.
    Grimlock: "Me Grimlock not kisser, me Grimlock KING!"
  • Military Maverick: Due to their rowdy nature, Grimlock and the Dinobots are often at odds with the rest of the Autobots and have been known to frequently show insubordination. In fact, there have been times where Grimlock has left the Autobots, sometimes even temporarily joining the Decepticons.
  • Reimagining the Artifact: In the original G1 cartoon, the Autobots made the Dinobots just because "that'd be cool to do" and no other reason. Various adaptations since have tried to provide justification for why, among the race of robots that turn into vehicles, there's a small subset of them that turn into dinosaurs. The usual explanation is that the Dinobots survived the crash on prehistoric Earth that sent the rest of the Transformers into stasis, or were awoken earlier than the rest of them, and they scanned dinosaur alt modes that they retained into modern times.
  • The Smurfette Principle: Some media add a sixth Dinobot to the core five, Slash, who is a female and transforms into a Velociraptor.
  • Theme Naming: Aside from leader Grimlock, the Dinobots have short, one-word names that start with "S". The core four are Slug, Snarl, Sludge, and Swoop, and auxiliary members include Slash, Scorn, Scowl, Strafe, and Skar. The lone exception is Paddles, a very obscure G1 character that turned into a Plesiosaur.


"In my Decepticon life, I never did a thing worth doing until now..."

Jetfire (aka Skyfire; long story, detailed further down) is an Autobot aerial combatant. In most incarnations he was once a Decepticon, but underwent a Heel–Face Turn and joined the Autobots. He turns into a jetcraft of variable design. He is able to combine with Optimus Prime to grant him flight and enhanced firepower.

  • Alternate Company Equivalent: Given where his toy originated from, he can been seen as one to the Macross Valkyrie.
  • Cool Plane: He turns into some sort of jet plane, usually a fighter plane though sometimes a spy plane or cargo plane.
  • Fusion Dance: He's sometimes able to combine with Optimus Prime to give Prime a power boost and a winged jetpack.
  • Heel–Face Turn: He tends to start out as a Decepticon, but then changes sides when he realizes his ideals align with them more. Even on occasions where he doesn't start out on the Deceptions, Jetfire's backstory tends to somehow personally connect him to the enemy faction.
  • One-Way Visor: He sometimes sports this.
  • Powered Armor: He sometimes has access to this, which often comes a visored helmet and a pair Shoulder Cannons. Said armor usually makes him more closely resemble the original Macross toy he was based off.
  • Shout-Out: And in spite of the above-mentioned legal issues regarding the original toy, some versions of the character continue to harken back to the Macross design. As far as legally possible.
  • We Used to Be Friends: His relationship with Starscream before the war; when it broke out, they found themselves on opposite sides.
  • Writing Around Trademarks: According to Hasbro's production bible for the G1 cartoon, Jetfire was renamed Skyfire and writers were discouraged from using the character unless they had to. While never directly confirmed, this is because of the origins behind his original Japanese toy. In the franchise's early days, Hasbro tended to just browse Japanese toy fairs and pick transforming robot toys they liked to market in the US under the Transformers brand; the Diaclone and Microman toys that formed the bulk of Transformers were manufactured by Takara, but Jetfire's toy was a Macross VF-1S Super Valkyrie manufactured by Takatoku Toys, i.e., a competitor company to Takara. While the exact details aren't given beyond "due to legal reasons", this is why the character was renamed and his appearance in the cartoon only vaguely resembled the toy. As of a 2013 lawsuit from Harmony Gold (current owners of Robotech and thus the rights to Macross outside of Japan) that was settled out of court, Hasbro has somehow gotten over these legal hurdles, resulting in Jetfire merchandise that more closely resembles his Super Valkyrie toy.
  • Your Size May Vary: He is usually one of the larger Autobots, but his size ranges from being an average Transformer to towering over the likes of Optimus and Megatron (though not Combiner-sized).


"When the music is blastin', I'm rollin'."

An Autobot communications officer, Blaster is often depicted as one of their higher-ranking members. His alt mode is either a boom-box, or a civilian vehicle outfitted with a killer soundsystem.

  • Depending on the Writer: While Blaster is usually a more laidback and fun character, some incarnations make him more serious and dour.
  • Drone Deployer: He can deploy smaller transformers that store inside him. While he has fewer recurring ones than Soundwave, the most recurring are Eject and Rewind (humanoid robots), Steeljaw (a feline), and Ramhorn (a rhino).
  • Good Counterpart: To Soundwave, as a communications officer who deploys cassette robots from his chest. Naturally they end up duking it out directly frequently. To further contrast them, Blaster is red while Soundwave is blue, and Blaster's casual and fun attitude is juxtaposed with Soundwave's cold, robotic monotone.
  • Palette Swap: Given how he is the Autobots' answer to Soundwave, Blaster's toys are often redecoed from Soundwave or vice versa.
  • Red Is Heroic: His usual color scheme is red and yellow.


The premier Autobot scientist, Perceptor usually serves as the chief science officer. His alt mode varies; while his most iconic is a microscope, he sometimes turns into either a truck laden with research equipment or a tank.

  • Good Counterpart: To Shockwave. Both are the head scientists among their respective factions and exhibit Spock-like behaviors. Their original G1 alt modes also required them to change scale, and such has caused their alt modes to vary in future media despite them maintaining consistent design elements in robot mode.
  • Long-Range Fighter: He prefers to fight at range, which reflects his alt mode being a microscope as he has unparalled accuracy. The 2005 IDW continuity even turned him into a Cold Sniper.
  • Omnidisciplinary Scientist: A rarity for a franchise that uses Cast Speciation to sell more toys by using different characters for different roles rather than giving them all to a few characters, Perceptor is perhaps the closest to this trope. He is described as being highly versed in a wide range of scientific fields, ranging from metallurgy to electrical engineering to astronomy.
  • Primary-Color Champion: His color scheme consists of red and cyan (a shade of blue) with yellow highlights.
  • Red Oni, Blue Oni: He is the reserved Autobot scientist to Wheeljack’s Mad Scientist (though Wheeljack’s role is specifically The Engineer). This also carries into their fighting styles; while Perceptor prefers to fight at range, Wheeljack is not afraid to enter the thick of combat.
  • Sesquipedalian Loquaciousness: Being a scientist obsessed with technical details, his speech patterns are full of overly complex words and scientific jargon that most of his fellow Autobots would find unnecessary.
  • Shoulder Cannon: He always sports one which is always incorporated into his alt mode, be it his scope or tank barrel.
  • Sizeshifter: In his original G1 incarnation, Perceptor turned into a microscope (though he could also turn into a tank). Naturally, future iterations of the character have moved towards different alt modes.
  • The Smart Guy
  • The Spock: Perceptor is perhaps the one of the most logic-oriented Autobots (though he usually does not steep towards Prowl’s level since he views himself as a scientist rather than a soldier). Perhaps the most obvious is his Animated iteration, who speaks with the same speech synthesizer as Stephen Hawking and is described as having deleted his emotions to make room for more scientific knowledge.
  • Tank Goodness: He can transform into a tank, even when he has his microscope alt mode.
  • You Don't Look Like You: As with the likes of Megatron, Soundwave, Shockwave, and Blaster, Perceptor’s alt mode being a microscope has resulted in his alt mode varying across continuity. Unlike the rest, he’s been much more consistent with his choice of alt modes, turning into either a truck or tank while always finding a way to incorporate his signature Shoulder Cannon.

    The Aerialbots 

The Aerialbots are a team of Autobots that take the form of aircraft, most often fighter planes. Their names and personalities vary across continuity, but they are always able to combine into Superion, the first of the Autobot Combiners. Their usual lineup is as follows:

  • Silverbolt (Concorde)
  • Slingshot (Harrier)
  • Fireflight (F-4)
  • Skydive (F-16)
  • Air Raid (F-15)

  • Combining Mecha: Superion is perhaps the most iconic Autobot Combiner.
  • Cool Plane: Their alt modes.
  • Depending on the Writer: The individual Aerialbots vary in names, appearance, and personality, but there’s usually either five to six members.
  • Good Counterpart: Considering how most Autobots turn into cars while most Decepticons turn into planes and other military vehicles, they count as they provide the Autobots with a way to counter Decepticon flyers such as the Seekers. In addition, as the Decepticons usually are the first to develop combiners, the Aerialbots serve as the Autobots’ answer to them.
  • Humongous Mecha: As a Combiner, Superion stands tall over all other Transformers short of other Combiners and Titans.
  • Military Maverick: The Aerialbots are sometimes act like this to the rest of the Autobots at first, but over time they warm up to them.

    Ultra Magnus 

"Undisciplined thinking can make even the simplest task impossible."

Ultra Magnus is another high-ranking Autobot, sometimes even outranking Optimus Prime. His battle prowess is feared across the Decepticon lines, and with good reason. He transforms into a truck that hauls a combat trailer; the cab forms Magnus' core robot form, and the trailer is worn as power-enhancing armor.

  • Drop the Hammer: His signature weapon is a large hammer.
  • Large and in Charge: Not only is he is a high-ranking Autobot who sometimes fills in for leader when Optimus is incapacitated, he also often towers over Optimus himself as he often wears Powered Armor.
  • Mythology Gag: The Diaclone toys that became Ultra Magnus and Optimus Prime were originally the same "Convoy" figure, just with different trailers — this is why the G1 Ultra Magnus toy without his armor looks suspiciously like a white Palette Swap of Optimus Prime, because that's exactly what his Diaclone toy was. Transformers media after G1 reference this frequently by giving Prime and Magnus a connection, such as being brothers or that they were both rebuilt by Alpha Trion. Within the toyline, Optimus Prime toys are often redecoed into Ultra Magnus toys, and in the Masterpiece line Magnus' cab mode looks just like Prime's cab mode for his MP-10 figure, even though the cab isn't a separate robot anymore and transforms entirely different.
  • Palette Swap: Sometimes, his toys are merely redecoes of Optimus.
  • Powered Armor: He's often depicted as a much smaller transformer that wears the Magnus armor to enhance his powers for combat. In some versions, it turns out he is a Legacy Character with multiple smaller bots having worn the armor throughout ages.
  • Related in the Adaptation: In the original G1 cartoon, he was just another Autobot of many that appeared suddenly during the shift to Season 3. Some media make him related to Optimus Prime in some way, due to the nature of Magnus' original toy.

    Hot Rod/Rodimus Prime 

"Talent and looks; I got it all!"

A young, hot-headed member of the Autobots, Hot Rod is nonetheless a courageous and reliable soldier. He has the potential to one day become a leader among the Autobots, earning the deserved title of "Prime". He transforms into a futuristic sports car, naturally often based on a hot rod.

  • Alliance of Alternates: At the end of Regeneration One, all versions of this character at the time teamed up to stop the Dark Matrix Creature.
  • Arm Cannon: His signature weapon are blasters on his forearms, formed from his exhaust pipes in vehicle mode.
  • Cool Car: He transforms into a futuristic sports car, almost always with flame designs over it and hot rod-like exhaust pipes visible on it.
  • Energy Bow: Some versions have access to a Rocket Bow, which is a reference to the fact his original characterization was modeled after Hawkeye.
  • Fire-Breathing Weapon: He frequently has access to flame-based weaponry regardless of continuity.
  • Large and in Charge: As Rodimus Prime, he grows in size so that he matches his predcessor in height.
  • Meaningful Rename: In the original G1 movie, Hot Rod was christened "Rodimus Prime" when he received the Matrix of Leadership. Since Prime was not yet established as a title or rank one could earn, this was simply to anoint Hot Rod as heir to Optimus' position as the new leader of the Autobots.
  • Next Tier Power-Up: In incarnations where his Rodimus form is an upgrade of his Hot Rod form, it tends to come with a new facial design, larger robot mode, and possibly a new vehicle mode (usually a Big Badass Rig like his predecessor).
  • Red Is Heroic: His primary color scheme is predominantly red with orange and yellow flames.
  • Writing Around Trademarks: Because of legal issues with trademarking the name "Hot Rod", the character bounced between names for years — Hot Rodimus, Rodimus, Rodimus Major, and Hot Shot, have all been used at various points. In later years it seems Hasbro finally got their hands on a trademark of some sort, because he's gone back to Hot Rod.


The quintessential female Autobot and perhaps the most iconic female Transformer. Her alt mode is either a Cybertronian hover car or a motorcycle.

  • Cool Bike: In more recent incarnations, she turns into a bike.
  • Cool Car: More traditional iterations of this character usually turn into some sort of car.
  • Dual Wielding: Her usual armament is a pair of swords.
  • Fem Bot
  • Pink Is Feminine: Most of her incarnations, regardless of alt mode, are pink and white in color.
  • The Smurfette Principle: She is usually the only active female among the Autobots.


An Autobot courier, Blurr both moves and talks extremely fast. He turns into a sleek futuristic car.

    The Wreckers 

A special task force of various Autobots called in whenever the odds are the worst. Their membership varies across continuity, but given what they’re called in for, their roster is usually in flux.

    Star Saber/Wing Saber 

A legendary warrior known for his skill with the sword, oftentimes at odds with the rest of the Autobots. His alt mode is a futuristic jetcraft.

  • Cool Sword: Is usually known for wielding some sort of sword, oftentimes a BFS.
  • Cool Plane: His alt mode is always some form of jet aircraft, almost always Cybertronian in origin.
  • Fusion Dance: Most iterations of this character possess the capability to combine with Optimus (or a lookalike in the case of Ginrai/Victory Leo). Between Saber and Jetfire, it is more likely the former will have the capability to combine with Optimus.
  • Knight Templar: More recent iterations of this character exhibit this kind of behavior.
  • Large and in Charge: Given his alt mode being a heavy combat aircraft, he is usually one of the larger Autobots, often being on the same level (both in terms of rank and scale) as Ultra Magnus.
  • Master Swordsman
  • Military Maverick: Despite eventually becoming one of the more higher-ranking Autobots (if not the leader), Star Saber is known to have a bit of a rough side that puts him at odds with the rest of the Autobots. His Cybertron iteration is described as having a penchant for insubordination (even having attacked Optimus once), whereas his IDW iteration was (to put it very lightly) an outright Knight Templar and The Fundamentalist.
  • One-Man Army
  • Primary-Color Champion: His usual color scheme is predominantly red, blue, and yellow mixed with white.
  • Samurai: Sometimes has this characterization, reflecting the fact that he originated in a Japanese-only installment.
  • Sixth Ranger: He usually joins the Autobots midway into the conflict.
  • Super Robot: While the franchise are usually closer to this genre than the Real Robot Genre, he perhaps fits this trope even more than the average Transformer, being known to display fantastical capabilities and tropes heavily associated with the genre.


A samurai-themed Autobot with a checkered past, oftentimes having once been the Decepticon Deadlock. His alt mode is a car of some sort, but usually a Japanese rally car.


The result of the Thrilling 30 “Fan-Built Bot” poll, Windblade is a female Autobot hailing from Caminus with a onna-bugeisha motif.

    Omega Supreme, Metroplex, and Fortress Maximus 

The resident Autobot Titans, the largest class of Transformer. Usually taking the alt mode of an Autobot city, base, or starship, there's no bigger muscle on their side than either of those three.

  • Arch-Enemy: Metroplex to Trypticon, Fortress Maximus to Scorponok. They are among the recurring Titans on either side, so they tend to end up being depicted fighting each other a lot.
  • Arm Cannon: Omega Supreme has one for his arms.
  • BFS: Fortress Maximus sometimes wields the Master Sword, an enormous sword scaled to his size.
  • Cool Starship: Fortress Maximus (and Omega Supreme depending continuity) can turn into a starship that other transformers can use for transport.
  • Forgotten Superweapon: As Titans, they usually are long-dormant and hidden, forcing the Autobots to discover them as well as how to activate them. When the Autobots succeed, it means they have attained a powerful new asset that can tip the scales of the war in their favor.
  • Genius Loci: Their alt modes are cities for Transformers.
  • Humongous Mecha: Seeing as their alt modes are usually cities for Transformers, which are already much bigger than humans. This entails that they tower over their standard-sized brethren. In terms of scale, Omega Supreme is usually the smallest (sometimes not even being classified as a Titan), while Fortress Maximus is the biggest (when he's not a smaller Transformer piloting a larger body).
  • Meta Mecha: Fortress Maximus is a Headmaster - meaning a much smaller Transformer forms his head. Unlike other Headmasters, said smaller Transformer also has another Transformer form his head as well. In some continuities, Fortress Maximus is a much smaller Transformer who pilots a much larger body into battle.
  • Light Is Good: Metroplex is depicted with bright white and silver as his main colors. Fortress Maximus sports a similar color scheme, though his has blue and red highlights.
  • Weaponized Headgear: Omega Supreme has a cannon on the back of his head.

    Alpha Trion 
"Respect your elders."

One of the Thirteen Primes, Alpha Trion is a wise sage who usually plays the role of being the mentor to Optimus Prime. He usually does not transform, but when he does, his alt mode is usually a Cool Starship.

  • Big Good: Given that he’s usually responsible for creating or empowering Optimus Prime, he counts.
  • Caped Mecha: He often sports purple protrusions on his back while in robot mode that given the illusion of a mantle.
  • Cool Starship: His usual alt mode.
  • Keeper of Forbidden Knowledge: Oftentimes possesses special knowledge or capabilities that allow him to empower the Autobots.
  • King of Beasts: Sometimes, he turns into a lion.
  • Last of His Kind: While not the last of the Thirteen proper (especially if one considers Optimus to be one of the Thirteen), he usually outlasts most of his brothers into the present day to interact with the Autobots.
  • Magic Librarian: A rare sci-fi version of the trope. His role among the Thirteen was to act as the record keeper, having written the Covenant of Primus.
  • The Mentor: To Optimus Prime.
  • Purple Is Powerful: His color scheme usually mixes purple and red. As he’s one of the Thirteen, it makes sense to reflect his otherworldly knowledge.
  • Toyless Toyline Character: Being a background character, Alpha Trion usually does not get a toy in most Transformers toylines.
  • Virtual Ghost: Some versions of the character have already passed on and only continue interacting with Optimus and company through some sort of hologram.
  • Wizard Beard: Has a robotic version.
  • You Don't Look Like You: While Alpha Trion's overall robot mode appearance has remained constant, his alt mode has varied wildly due to him not often transforming on screen.


    In General 

"The Decepticons are led by a single undeviating goal: total domination of the universe."

The villainous faction of the Transformer race. The Decepticons wish to conquer Cybertron, and often expand their sights to Earth and the entire universe. They tend to adopt militaristic alt modes like fighter jets, tanks, and armored vehicles.

  • Asskicking Equals Authority: Unlike the Autobots, who are lead by a Prime bestowed with a Matrix of Leadership, the Decepticons are lead by the most powerful member of the group. This is deconstructed as a horrible idea since all of the Decepticons think they're the most powerful, hence the all Chronic Backstabbing Disorder from Starscream and others, as well as all the arguing and fighting over who'll be the next leader whenever the current leader is incapacitated.
  • Battle Cry: "Transform and rise up", a Dark Reprise of the Autobots' call. Fitting given that modern media depicts have Decepticons rebelling against the Autobots they see as oppressing them.
  • Big Bad: The Decepticons are always the villains in any Transformers media.
  • Evil Counterpart: To the Autobots.
  • Full-Circle Revolution: Whenever an adaptation touches on the Decepticons seizing control of Cybertron, of course they prove themselves even more cruel and oppressive towards the remaining Autobots than the Autobots were to them when they ran things.
  • Meaningful Name: "Deceptive cons(tructs)", obviously. Some adaptations try various ways to justify the name due to how Obviously Evil it sounds.
  • Purple Is Powerful: The Decepticon insignia is purple and the color features prominently in their technology and some of their higher-up members like Megatron and Shockwave.
  • The Revolution Will Not Be Civilized: In many later adaptations, the Decepticons are depicted as rebels who began an uprising against the Cybertronian ruling class of Autobots because they felt oppressed and abused by society. However, even if they're shown to be correct in this perception, the Decepticons demonstrate they are far more villainous than the Autobots.


The leader of the Decepticons, Megatron seeks to wrest control of Cybertron from the Autobots in the name of Decepticon supremacy over the Transformer race. Depending on the Writer, he may be a Well-Intentioned Extremist who truly thinks he will lead the Transformers into a Golden Age, but other times he's a megalomaniacal warmonger who just wants to rule the galaxy and exterminate anyone in his way. In some media, Megatron may be upgraded or rebuilt into a more powerful form, in which he may take the name Galvatron. Megatron's alt mode varies — his original Generation 1 alt mode was a pistol, but in other incarnations he tends to be a tank, jet, helicopter, or even a dragon.

  • Arch-Enemy:
    • As Megatron, he’s this to Optimus Prime, and it is very much a mutual feeling. Megatron would slaughter his way through his own troops if it meant he could get a clear target on Optimus.
    • As Galvatron, he’s one to Rodimus Prime and Ultra Magnus, out of all the Autobots, Galvatron is the most personal enemy to these two.
  • Arm Cannon: His iconic weapon is his fusion cannon, which is mounted on his arm or replaces one of his arms.
  • Asskicking Equals Authority: He's typically considered the strongest of the Decepticon army, and generally at Optimus Prime's level of skill, if not occasionally above or below him, and is consistently considered the leader of the Decepticons. Needless to say, Decepticons or Autobots that take Megatron head on are often just signing up to get beaten down or killed.
  • Authority Equals Asskicking: He is universally depicted as one of the most powerful Decepticons, if not the most powerful. This is usually implied to be why they follow him, due to either Asskicking Equals Authority or because Megatron is The Dreaded.
  • Bad Boss: Most Megatrons care nothing about the other Decepticons beyond them providing minions and soldiers to fight in his name. They usually follow him anyway because they're terrified of him.
  • Big Bad: As the leader of the Decepticons, Megatron is usally the primary antagonist in Transformers media. When he isn't, it's usually because he's incapaciated somehow, or because something even worse (like Unicron) overshadows him.
  • BFG: His fusion cannon is massive, usually the size of the rest of his arm.
  • Character Development: Meta-wise, the earliest incarnations of Megatron were just Generic Doomsday Villains who desired conquest and power. In later media, Megatron is emphasized as a Well-Intentioned Extremist who had good reasons to begin his rebellion. There's even been media where Megatron becomes disillusioned with his own cause, has a Heel Realization and renounces the Decepticons (one version even joined the Autobots for the rest of the series when this happened), though this is very rare.
  • Cool Gun: His original G1 alt mode was a laser blaster based on the custom Walther P38 from The Man from U.N.C.L.E..
  • Cool Plane: His second most common alt mode.
  • Cybernetic Mythical Beast: Sometimes, Megatron can turn into a robotic dragon.
  • Decomposite Character: Some media depict Megatron and Galvatron interacting with one another, either by making Galvatron an ancient Transformer who long predates Megatron or through the use of Time Travel.
  • The Dreaded: The Autobots greatly fear Megatron, and so do most of the Decepticons for that matter.
  • Epic Flail: His preferred melee weapon is a chain mace.
  • Evil Counterpart: To Optimus Prime. Both are leaders of their respective factions of the Cybertronian War and seek peace and unity among the Transformer race, but Optimus is a protector who believes in freedom while Megatron is a warlord and tyrant.
  • Evil Sounds Raspy: His voice is usually deep and raspy, the most iconic of which is provided by Frank Welker.
  • Greater-Scope Villain: Megatron is always the most recurring leader of the Decepticons, even if he loses his position as leader, he always finds a way to get it back.
  • He Who Fights Monsters: In later media especially, it's common to depict Megatron as starting the Decepticon rebellion for good reasons, or at least with sympathetic intentions. However, almost universally the war triggers Motive Decay to the point he just wants to destroy the Autobots and rule Cybertron no matter what it takes.
  • Large and in Charge: As the leader of the Decepticons, he is usually one of larger Decepticons if not the largest of them all.
  • Legacy Character: "Megatronus" is the name of The Fallen, one of the Thirteen Primes who underwent a Face–Heel Turn. Most adaptations imply or outright state that Megatron took his name from The Fallen. Additionally, the Beast Wars era Megatron took his name from the original G1 Megatron.
  • Meaningful Rename: Megatron is occasionally upgraded into a new, more powerful form, and he is rechristened "Galvatron".
  • Names to Run Away from Really Fast: As stated above, some versions of Megatron took their name from The Fallen, a.k.a. Megatronus Prime, who is basically the Transformers' version of The Antichrist or Judas.
  • Real Life Writes the Plot: Megatron's original G1 alt mode was a gun, but this created numerous headaches when it came to marketing and selling it because of legal restrictions on the sale of toy guns in North America; at the time some areas actually required collectors to have a gun license to own a G1 Megatron. Not helping things is that his alt mode looks rather realistic as far as toy guns go. For this reason his later incarnations have different alt modes, usually a tank or jet, and his gun alt mode tends to only appear in media that is purposefully evoking his G1 design.
  • Tank Goodness: His most recurring alt mode (introduced in G2) is a tank.
  • Transforming Mecha: Sometimes, Megatron possesses the ability to transform into more than one alt mode. His RID 2001 iteration has ten modes (including robot mode), the most of any Transformer ever.
  • Villainous Friendship: With Soundwave. Because Megatron is correctly assured of Soundwave's absolute loyalty, and because he is an efficient and competent soldier, Soundwave is consistently one of the few Decepticons Megatron genuinely trusts and respects.
  • Well-Intentioned Extremist: In incarnations that emphasize Cybertron's Fantastic Caste System, Megatron is usually a low-ranked Cybertronian who begins the Decepticon uprising to overthrow the corrupt and oppressive government that is keeping them down. With incarnations that emphasize Cybertron is a dying world due to its energy crisis, Megatron wants to rebuild Cybertron and restore the Transformer race to its glory days. Either way, he's willing to do anything to make it happen. His methodology is reflected in his recurring motto, "Peace through tyranny!"
  • We Can Rule Together: Megatron often espouses the belief that he and Optimus ought to be allies to rebuild Cybertron together. If only Optimus wasn't such an idealistic fool and could see things Megatron's way...
  • We Used to Be Friends: In some incarnations, Megatron and Optimus used to be friends, or at least like-minded in acknowledging the problems with Cybertron and the need for reforms. Then Megatron begins his rebellion and the two find themselves on opposite sides.
  • With Great Power Comes Great Insanity: Whenever Megatron gets turned into Galvatron, his increase in power is often accompanied by a decrease in sanity.
  • Worthy Opponent: He usually regards Optimus Prime as one.
  • You Don't Look Like You: Megatron's physical design (his robot mode appearance and overall color scheme) has varied wildly across the franchise. Even more so is his choice of alt mode - he's been a gun, tank, jet, helicopter, truck, dragon, race car, and tyrannosaurus rex.

"Kneel and worship the TRUE leader of the Decepticons!"

Starscream is Megatron's lieutenant, commander of the Decepticon air fleet, and the Trope Namer and Trope Codifier for The Starscream. Ambitious and traitorous, Starscream is itching for the chance to lead the Decepticons himself and will take any opportunity to kill Megatron or leave him to his death. Megatron is well aware of Starscream's treacherous ways; why he keeps him around in spite of that is something writers have struggled to explain for decades. Starscream's alt mode is a fighter jet.

  • Ace Pilot: Starscream is generally regarded as a powerful warrior in the air and a skilled flyer in his jet mode.
  • Arm Cannon: His trademark weapon is a pair of forearm-mounted blasters.
  • Beware the Silly Ones: While often times Starscream comes off as pathetic and a coward (which he is), there are plenty of adaptations that also show that he is very deadly and has his moments of cunning pragmatism.
  • Chronic Backstabbing Disorder: No matter how many times his plans to overthrow Megatron fail, Starscream never learns his lesson and keeps trying.
  • Co-Dragons: The most recurring (and least loyal) of Megatron's usual top lieutenants, alongside Shockwave and Soundwave.
  • Combat Pragmatist: A lot of Starcream's success comes from how ruthlessly pragmatic he is, taking about any opportunity to do what he feels is best for him.
  • Cool Plane: His alt mode is a jet fightercraft, and he leads the Seekers, a squadron of Decepticon aircraft.
  • Depending on the Writer: Starscream's competence, both in scheming and battle, vary wildly across adaptations. Later works tend to emphasize he actually is very powerful and a good fighter, but he's held back by his cowardice.
  • Dirty Coward: When his plans fall apart, Starscream will quickly degrade into a sniveling sycophant and kiss "Lord Megatron's" feet to avoid his wrath. He also tends to dislike fighting unless it's an easy win for him, and will flee if it isn't.
  • The Dragon: He's usually Megatron's second-in-command. In media where Megatron is incapacitated or no longer around, Starscream often becomes a Dragon Ascendant that leads the Decepticons in his absence.
  • Evil Sounds Raspy: He is usally voiced in this manner, as provided by the likes of Chris Latta, Tom Kenny, and Steve Blum.
  • Hidden Depths: Subverted. Several continuities give him a background in science, not that it tends to make him any more competent. That said, his creditentials tend to be forgotten if Shockwave is also present.
  • Informed Attribute: He's officially listed as a scientist before the war, but this is rarely if ever touch upon.
  • It's All About Me: Starscream's survival comes before anything else, and he won't do anything that puts his own priorities in danger unless he's absolutely certain he'll win.
  • Mistreatment-Induced Betrayal: While the level varies, a lot of Starscreams' treacherous sides stem partially because their Megatron doesn't treat him very well or heed his advice, useful or not. Of course in many cases it is unclear whether Starscream himself was always an impudent, disloyal jerk to Megatron that earned his shabby treatment, though Megatron usually being a Mean Boss all around certainly doesn't help either way.
  • Palette Swap: Starscream's body type is often used as the basis for the general "Seeker" mold in both the cartoons and in the toyline, and in the cartoons Seekers may be so widespread as to serve as Mooks. How much Starscream's mold gets reused depends on the specific incarnation.
  • Primary-Color Champion: Inverted. Starscream's iconic color scheme is red, blue, and yellow, but he's one of the most conniving and treacherous Decepticons around.
  • Reimagining the Artifact: The major problem with the original Starscream is "why would Megatron let him live when Starscream keeps trying to betray him?" Various media over the years have tried to explain this by giving Megatron understandable reasons to keep Starscream around in spite of his treachery, or by making Starscream a more competent schemer who better masks his traitorous intentions. In some cases, Megatron tolerates Starscream's behavior because he (usually accurately) presumes that Starscream's incompetence ensures his plans never succeed and his cowardice will keep him from doing anything too detrimental out of fear of punishment. Then there's incarnations where Starscream's behavior isn't tolerated and when he's worn out Megatron's patience, Megatron will either cast Starscream out of the Decepticons or slag him.
  • Small Name, Big Ego: While Starscream wants to command the Decepticons and considers himself the only one worthy of the position, whenever he gets the chance to be leader he is a terrible one — he lacks the power that made the Decepticons follow Megatron out of fear and he has no charisma to inspire genuine loyalty in them, which combined with his ego means that the Decepticons are openly contemptuous of him and dubious about taking orders from him. His plans against the Autobots also tend to never work out and end badly, making the Decepticons hate his leadership even more.
  • The Starscream: He's the Trope Namer. One thing that never changes across the franchise is that any time there's a Decepticon called Starscream, you can be assured that sooner or later he'll try to backstab Megatron and take over the Decepticons.

    Seekers and Coneheads 
The term "Seeker" refers to the recurring fliers of the Decepticon army. They usually resemble Starscream and as such they transform into jets; usually all the same model to make it easier to animate the cartoons and redeco the toys. The "Coneheads" are so named because they also transform into jets and may even have similar robot modes to the Seekers, but have some differences including the tip of their jet mode being on top of their heads, hence the name.

Skywarp and Thundercracker debuted around the same time as Starscream and are usually among the first named Seekers to arrive alongside him in any continuity. Other Seekers include Sunstorm, Slipstream, and the Rainmakers (Acid Storm, Ion Storm, and Nova Storm). The most recurring coneheads are Dirge, Ramjet, and Thrust.

  • Arm Cannon: Like Starscream, their weapons are arm-mounted blasters.
  • Color-Coded Characters: To tell the Seekers apart from each other since they tend to share the same body type and alt mode, they all have different colorations: Starscream is red, Thundercracker is blue, Skywarp is purple and black, Sunstorm is orange and yellow, Slipstream is purple and blue, Acid Storm is neon green, Ion Storm is neon blue, and Nova Storm is neon yellow. The Coneheads, having more visual differences to their designs (such as each having a different type of wing), don't need just the color-coding to tell them apart, but Thrust is usually red (though sometimes green), Dirge is is blue, and Ramjet is white.
  • Divergent Character Evolution: Thundercracker and Skywarp originally had little personality in G1 and were just violent, cruel thugs like more generic Decepticons. Otherwise their role could be summed up as "the two main Seekers who aren't Starscream". Later media make them more distinct from Starscream and each other; Thundercracker has a sense of honor and morals and Skywarp is dim-witted and cruel.
  • Fragile Flyer: The Seekers form the backbone of the Decepticon air forces and generally transform into fighter aircraft or spacecraft, but in most versions of the franchise when a firefight begins they'll most often transform into robot mode and join in the fight on land. Transformers: War for Cybertron and Transformers: Fall of Cybertron demonstrate why this is the case: when fighting fliers like Aerialbots or Seekers the fastest way to get rid of them is to damage their foot-mounted thrusters, which invariably sends them screaming into the nearest surface and a flaming, explosive death.
  • Mooks: In some incarnations, generic Seekers serve this function, forming the main Decepticon attack forces but only a few of them getting prominent roles.
  • Palette Swap: The Seekers tend to all have the same body type with maybe only minor differences besides color. This makes it easier for the animators to reuse the character models and the toy manufacturers to reuse their molds.
  • Purple Is the New Black: Skywarp is usually purple, but also sometimes black and purple.
  • The Smurfette Principle: Slipstream is usually the only girl among the Seekers.
  • We Are "Team Cannon Fodder": Truth be told, they usually don't contribute much other than being fodder.

"Cries and screams are music to my ears."

The Decepticon communications officer, Soundwave is Megatron's most loyal and trusted soldier, carrying out any order with obedient efficiency. He commands a small army of mini-robots that store inside him, waiting to be deployed to aid him in operations. His alt mode varies constantly, due to attempts to avoid Sizeshifter mechanics, but the most iconic is a cassette tape player, with his assist robots turning into cassettes.

In some continuities, Soundwave is upgraded into Soundblaster, other times Soundblaster is a clone of him.

  • The Artifact: Despite the fact that the franchise's main demographic (young kids) probably won't know what a cassette player is, new toys of Soundwave with that alt mode continue to be released. Nostalgia aside, this makes sense because of his central character trait and toy gimmick — having smaller Transformers that store inside him, which perfectly fits a cassette player with tapes. Whenever Soundwave has a different alt mode, he usually retains this gimmick even if it doesn't make much sense, and the writers tend to just not draw attention to or explain why he's the only Decepticon who can do this.
  • Benevolent Boss: Compared to Starscream and Megatron who can easily and commonly veer into Bad Boss, or Shockwave who's just downright apathetic to his underlings, Soundwave is generally depicted as caring and loyal to his minicons.
  • Big Badass Bird of Prey: Laserbeak and Buzzsaw transform into large birds of prey.
  • Co-Dragons: Generally depicted as one of Megatron's main lieutenants, alongside Starscream and Shockwave, and usually the most loyal.
  • Communications Officer: This is his role in the Decepticons.
  • The Creon: Soundwave's loyalty to Megatron is absolute. In media where Megatron vacates his position for whatever reason (killed, exiled, lost and left for dead, or renouncing the Decepticon cause entirely), Soundwave will try to get him back.
  • Decomposite Character: While Soundblaster is usually an upgrade of Soundwave, more recent media has made him a clone.
  • Depending on the Artist: Soundwave's general robot mode aesthetic has remained the same throughout the franchise but his alt mode has varied wildly in order to keep him to date. His alt mode has ranged from a cassette tape to a truck to a satellite to a spy drone.
  • Drone Deployer: He commands a crew of smaller Transformers that store inside him and are deployed for specific missions. The most recurring ones are Rumble and Frenzy (humanoid robots with piledriver arms), Laserbeak and Buzzsaw (birds of prey), Ravage (a panther), and Ratbat (a bat).
  • Genius Bruiser: Granted, he's never to the level of Shockwave in terms of intelligence, but Soundwave is typically treated as one of the smarter and more competant Decepticons.
  • Machine Monotone: His voice often has a metallic distortion to it.
  • One-Way Visor: He usually has one instead of traditional eyes.
  • Red and Black and Evil All Over: Soundblaster's color scheme is predominantly black with his translucent parts such as his visor and chest window becoming red.
  • Shoulder Cannon: His signature weapon is a concussive cannon mounted on his shoulder.
  • Sizeshifter: In his original G1 incarnation, Soundwave transformed from a towering robot to a handheld cassette player, and his mini-robots which were approximately the size of humans transformed into his cassettes. Over the years Hasbro has decided to downplay mass-shifting like this across the franchise, resulting in Soundwave getting other alt modes like a satellite, a stealth bomber, armored cars, and space fighters. None of them really stuck however, and he's still often a cassette player no matter how uncommon mass-shifting may be otherwise.
  • The Stoic: He almost always speaks in a calm, robotic monotone, further helped by his visor and mouthplate meaning he usually has no facial expressions.
  • Undying Loyalty: To Megatron. While other Decepticons might turn from Megatron under various circumstances, Soundwave would never abandon his commander.
  • Viewer Name Confusion: invoked One that happened in-universe; in the original G1 toyline and the Marvel comics, Frenzy was the blue cassette robot and Rumble was the red one, but in the G1 cartoon Rumble was blue and Frenzy was red. Whatever the source of this confusion, it spawned the "FIRRIB" and "FIBRIR" acronymsnote  and the confusion has continued to proliferate in the decades since because different media - including cartoons, comics, video games, and the toylines - go back and forth on which is which, sometimes even within the same work. Even Hasbro themselves has occasionally lampshaded the chaos.
  • Villainous Friendship: With Megatron. Because Megatron is correctly assured of Soundwave's absolute loyalty, and because he is an efficient and competent soldier, Soundwave is consistently one of the few Decepticons Megatron genuinely trusts and respects.


Shockwave is the Decepticons' resident Mad Scientist, always experimenting to develop new, more dangerous weapons of warfare for the Decepticons. His alt mode varies but is almost universally a vehicle of Cybertronian design.

  • Arm Cannon: His signature weapon is a cannon replacing one of his hands.
  • Co-Dragons: Almost always depicted as one of Megatron's top lieutenants, along with Starscream and Soundwave. His loyalty varies, but when he's The Starscream he'll probably be more successful than the Trope Namer.
  • Cyber Cyclops: His signature head design is one single, large, glowing eye.
  • Depending on the Artist: The general aesthetics of Shockwave's robot mode (angular head with one eye, horns, broad chest, Arm Cannon) have stuck through different incarnations, but the various series can't seem to agree on what his alt mode should be. He's been a laser pistol, a Space Fighter, a traditional tank, a Spider Tank, and he's adopted an Earth vehicle as an alt mode on occasion too. Fortunately, Shockwave is one of the Transformers who usually retains his Cybertronian alt mode, and Cybertronian technology tends to look strange and unusual anyway, so the creative team can fold him up into pretty much whatever form they want that vaguely resembles some sort of vehicle, and it'll fit the character.
  • Depending on the Writer:
    • Shockwave's loyalty to Megatron across different incarnations has run from "as treacherous as Starscream" to "as loyal as Soundwave".
    • Whether his Arm Cannon is his real hand, a replacement crafted after an injury, or something else, varies by continuity.
  • Early-Installment Weirdness: In the original G1 cartoon, he wasn't much of a threat at all and in battle was even less effective than Starscream, regularly getting overwhelmed by the Autobots in small numbers.note  As later adaptations emphasized him as one of Megatron's top generals, his power levels increased dramatically to make him a much more serious threat.
  • Evil Genius: He's the tech expert of the Decepticons and usually the smartest among them.
  • Genius Bruiser: While usually portrayed as being anywhere from "puny" to "average", some versions of the character have had the bulk to match his genius.
  • Hidden Badass: Sometimes. He isn't sent on field missions often, but his cold efficiency still makes him a worthy fighter if the need arises. This is also why he often lacks an earth altmode; if he is needed on earth, it's either for his mind or combat skills - either way, he's not going to need to hide among humans.
  • Paper-Thin Disguise: Shockwave is one of the Transformers that almost never adopts a traditional Earth alt mode and sticks to his Cybertronian alt mode, even though Cybertronian technology is very different from Earth technology and Shockwave's alt modes look like nothing seen on Earth.
  • Purple Is Powerful: Moreso than any other Decepticon, Shockwave's primary color is purple, and he's often depicted as one of their strongest members on-par with Megatron.
  • The Reliable One: Often portrayed as someone who takes his job - whatever it may be - extremely seriously as long as he agrees with its goal.
  • The Spock: Shockwave follows cold, impersonal logic in all his decisions. In the original G1 Marvel Comics, he overthrows Megatron and declares himself leader of the Decepticons not out of personal ambition, but because he has calculated that he is better-suited to the job. Then when Megatron presents a logical argument that he has failed in that position, Shockwave agrees and steps down. Comics writer Bud Budiansky even admitted the trope by name — he wrote Shockwave as Spock, if he was a Decepticon.
    Shockwave: Clarity of thought before rashness of action.
  • Sizeshifter: Much as with Soundwave, this is why Shockwave's alt mode has varied so much over the years. His original G1 alt mode turned into a laser pistol (though distinct enough from a real gun that it didn't cause legal problems like Megatron), and later incarnations try to give him a more to-scale alt mode to avoid this trope.
  • Undying Loyalty: Typically Shockwave has loyalty to the Decepticon cause itself but not to Megatron, as such, he's liable to betray Megatron or side with anyone that overpowers the former if the occasion should happen. Otherwise, he's pretty reliable to get the job done.
  • Writing Around Trademarks: Almost literally — the Unicron Trilogy incarnation of the character was named "Shockblast" because at the time Hasbro didn't have a copyright on the name "Shockwave". They got such a trademark for later appearances and Shockblast has been formally acknowledged as Shockwave just under a different name.


A Triple Changer with two alt modes, a tank and a fighter jet.

    The Insecticons 

The Insecticons are a group of Decepticons who turn into various insects. Their role in the Decepticon war machine is twofold: they provide a seemingly endless source of Mooks for Megatron to sic upon his enemies, and they possess the capability to convert any sort of matter into Energon to fuel the Decepticon war effort.

  • Big Creepy-Crawlies:
  • Cloning Blues: Sometimes used as an explanation for their numbers.
  • Depending on the Writer: Sometimes the Insecticons consist of just a few named individuals, a mindless swarm, or a mix of both (a few individuals with an army of clones).
  • Explosive Breeder: As another explanation for their mass numbers, the Insecticons can duplicate themselves.
  • Hive Mind
  • Horde of Alien Locusts: A robotic example (seeing as they like all other Transformers are alien robots). Some of them even turn into locusts.
  • Zerg Rush: When they appear, they usually appear as a swarm to overwhelm the Autobots through sheer numbers.

    The Constructicons 

The Constructicons are a team of Decepticons that take the form of human construction vehicles. Their number, names, and personalities vary, but they are well-known for one constant — the ability to combine into Devastator, an awesomely powerful and gigantic Decepticon that strikes terror into the hearts of the Autobots. Their usual lineup is as follows:

  • Scrapper (Front-end loader)
  • Hook (Crane)
  • Long Haul (Dump truck)
  • Scavenger (Excavator)
  • Bonecrusher (Bulldozer)
  • Mixmaster (Cement mixer)

  • Arch-Enemy: Are occasionally depicted as this to the Dinobots, who are among the few Autobots that can give it a good fight without being Combiners or Titans themselves.
  • Combining Mecha: There are many Combiner teams on both the Decepticons and Autobots, but Devastator was the first and most well-known.
  • Depending on the Writer: The individual Constructicons vary in names, appearance, and personality, and there may be as few as three or over a dozen.
  • The Dreaded: As one of the most powerful forces in the Decepticons, the Autobots greatly fear Devastator and his presence is often a cue that the threat level has been raised.
  • The Engineer: The Constructicons collectively tend to hold this position, due to their own skill at construction and the fact that the size and strength of Devastator makes such jobs easier.
  • Humongous Mecha: As a Combiner, Devastator stands tall over all other Transformers short of other Combiners and Titans.
  • The Juggernaut: As a Combiner, Devastator is immensely powerful and simply shrugs off lesser attacks by weaker Transformers. Without other Combiners or Titans to stand against him, beating him is usually an exhaustive team effort.
  • Secondary Color Nemesis: Their iconic color scheme is lime green and purple.

    The Combaticons 

The Combaticons are another Decepticon Combiner team, who turn into various military vehicles such as tanks and helicopters. As with most combiner groups, their members vary across continuity, but the constant is that they combine into Bruticus (or Ruination), a unstoppable juggernaut of a combiner only hindered by his intellect. Their usual lineup is as follows:

  • Onslaught (Artillery vehicle)
  • Blast Off (Space shuttle)
  • Vortex (Helicopter)
  • Brawl (Tank)
  • Swindle (Humvee)

  • Backpack Cannon: Onslaught (who is usually the Combaticon leader) sports these, which are then incorporated into Bruticus himself.
  • Combining Mecha
  • Depending on the Writer: The individual Combaticons vary in names, appearance, and personality, but they’re usually a team of five
  • Humongous Mecha: As a Combiner, Bruticus stands tall over all other Transformers short of other Combiners and Titans.
  • Tank Goodness: Some of the Combaticons turn into tanks.

    The Stunticons 

"Welcome to the end of the road! Courtesy of Menasor!"

Another Decepticon Combiner team built to combat the Autobots' rule of the road. They transform into various types of high-end civilian cars, save for their leader Motormaster, who turns into a semi-trailer truck. They combine into the towering, powerful, and very angry Menasor. Their exact members vary in different incarnations, and occasionally Menasor has been a separate character and not a Combiner, but the basic line-up is as follows:

  • Motormaster (semi-trailer truck)
  • Drag Strip (race car)
  • Dead End (Porsche)
  • Breakdown (Lamborghini)
  • Wildrider (Ferrari)

  • The Berserker: Menasor is usually extremely angry, violent, and mentally unstable.
  • Evil Counterpart: Intentionally intended to be civilian cars to rival the Autobots, since the Decepticons are usually aircraft and military vehicles.
  • Shapeshifter Baggage: In the original G1 cartoon, Motormaster was an awful case of this. He didn't transform into a semi-trailer truck, he transformed into the truck and its entire trailer. Despite this obvious additional bulk in his alt mode, in robot mode Motormaster was one of the bigger Transformers but on-par with Optimus and Megatron. Then when he combined with the other Stunticons into Menasor, the other Stunticons (usually) didn't form his arms and legs like most other Combiners, his limbs were indistinct grey rectangular prisms that the Stunticons attached onto. The result is that Motormaster suddenly got way bigger when he combined into Menasor, and it seemed like he didn't even need the other Stunticons to do it because they were just armoring for arms and legs that came out of nowhere. Later toys usually just make Motormaster the semi-trailer truck without the trailer and have the Stunticons form the full limbs of Menasor like other Combiners; occasionally they split the difference and have the trailer be a separate piece, possibly with limb pieces, that the team integrates with to form Menasor.
  • The Sixth Ranger: The G1 Motormaster toy came with a mini roller car that attached to his chest in Menasor form to make a chestplate. Some later media have since given the Stunticons a sixth team member with their own name and personality that fills the same role as the roller car in their combined mode.


Cyclonus is a high-ranking Decepticon, usually being the right hand to the current Decepticon leader. His alt mode is usually some sort of spacecraft, though he sometimes turns into a helicopter.

  • Combining Mecha: Sometimes, Cyclonus is able to combine with other Decepticons to form Galvatronus.
  • Cool Spaceship: His alt mode, which is either a space fighter or cruiser.
  • Noble Demon: He is noted as being particularly honorable for a Decepticon.
  • Proud Warrior Race Guy: He often places great emphasis on an honorable confrontation and has a noted disdain for cowards.
  • Purple Is Powerful: His signature colors scheme is predominantly purple.
  • The Spymaster: Sometimes he plays an underhanded role in the Decepticon army. His original G1 incarnation was given the role of saboteur, whereas his Aligned incarnation covertly masterminded the takeover of Cybertron only to be foiled.
  • Undying Loyalty: Unlike Starscream, he shows complete loyalty to his master, be it Megatron or Galvatron.


A Decepticon who resembles a giant skeletal samurai, Bludgeon is a monstrous warrior adept at the Cybertronian martial art of Metallikato. His alt mode is always a tank.


A spider-themed female Decepticon.


Sideways is an enigma of an entity, but his presence is usually a sign of trouble to come. Regardless of which side he’s working on, Sideways is usually working for a much greater evil, usually Unicron.


A corrupt cop turned Decepticon enforcer. His alt mode is usually a police car.

  • Breakout Character: While the name has been used for various Decepticons since 1990, the iconic version of this character debuted in the 2007 movie as Bumblebee's rival and gone on to become one of the more iconic Decepticons in the franchise, receiving iterations in multiple continuities since then.
    • The toyline for the War For Cybertron Trilogy takes it further by not only including a G1 version of Movie Barricade as a repaint of Prowl, but by also renaming the original G1 Micromaster Barricade to “Runner” to avoid confusion.
  • Dirty Cop: He’s an evil Decepticon who turns into a police car. His backstory usually makes him this before the war. Sometimes, he's a full on Rabid Cop as well.
  • Evil Counterpart: To Prowl. Incidentally, the iconic 2007 movie version of the character ended up replacing Prowl during the film’s production.


A bounty hunter who usually finds himself aligned with or in the company of the Decepticons. He turns into a black (and sometimes green) muscle car.

  • Spikes of Villainy: He usually sports spikes on both his robot and alt modes.
  • Your Size May Vary: Despite being a car, he’s usually much taller in robot mode than what his alt mode might indicate. Sometimes, he’s just as tall as Optimus himself (who has a much bigger alt mode).


A Decepticon who turns into an oversized scorpion. His personality and role varies quite wildly depending on the continuity.

  • Arch-Enemy: To Fortress Maximus. Not only are the traditional iterations of both characters Titans, they also both lead their respective faction's Headmasters.
  • Beware My Stinger Tail: Has an oversized one that he can use in both robot and alt mode.
  • Depending on the Writer: Depending on which iteration you’re looking at, Scorponok can go from an animalistic minion to a hulking brute to an Evil Overlord on par with Megatron himself.
  • Genius Loci: Some versions of the character are large enough to turn into cities.
  • Humongous Mecha: At his largest, he is one of the Decepticon Titans. This entails that he towers over his standard-sized brethren.
  • Large and in Charge: Scorponok is usually one of the larger Decepticons around (even when he is not a proper Titan), and he sometimes takes command of the Decepticons.
  • Meta Mecha: Traditionally, Scorponok is a Headmaster - meaning a much smaller Transformer forms his head. In recent years, to bring him up to scale with Fortress Maximus, his Headmaster also has another Transformer form his head as well. In some continuities, Scorponok is a much smaller Transformer who pilots a much larger body into battle.
  • Power Pincers: His alt mode pincers oftentimes carry over into his hands in robot mode.
  • Scary Scorpions: His alt mode.
  • Secondary Color Nemesis: His iconic color scheme is green, orange, and purple.
  • The Starscream: As one of the higher-ranking Decepticons, Scorponok often vies for the position of leader, which he has held in some continuities. Sometimes, he also covertly works for a much greater evil.
  • Your Size May Vary: Scorponok's size has varied drastically across continuity. His size has ranged from a small drone to slightly bigger than Optimus to only being just a bit shorter than Fortress Maximus.

A Titan, Trypticon is a city-sized Transformer that turns into a towering dinosaur.

  • Arch-Enemy: To Metroplex. Since Metroplex is the Titan the Autobots have easiest access to in most incarnations, whenever the Decepticons bring in Trypticon, the Autobots summon Metroplex to even the odds.
  • Breath Weapon: He has access to one in dinosaur mode.
  • Cool Starship: Sometimes, Trypticon can turn into a full fledged battleship which then serves as the Decepticon flagship.
  • Dark Is Evil: His main color scheme is black and purple.
  • Genius Loci: As a Titan, he turns into a city.
  • Humongous Mecha: As a Titan, Trypticon is the largest class of Transformer in the series.
  • Kaiju: Fits the bill in his robot mode, as a towering dinosaur that stomps on even Transformers like bugs.
  • Not Zilla: Is often likened to Godzilla in his design.

    The Fallen 
One of the Thirteen Primes, Megatronus Prime betrayed his fellow Primes and was cast out, in the process earning the moniker of the Fallen. In spite of his defeat and exile, his actions would lead to him being seen as the first Decepticon and thus the progenitor of the faction of the whole, and it is from his name that Megatron would take his name from. And sometimes, he is still around to the present, working to bring about his apocalyptic goals.
  • Based on a Great Big Lie: Some media imply that the incident that caused the Fallen's exile was either an accident or he was set up, and the truth has been lost to time.
  • Dark Is Evil: His color scheme is predominantly black, with purple and orange mixed in.
  • Depending on the Artist: The Fallen’s appearance (both in robot and vehicle modes) has varied throughout his appearances. Sometimes he turns into a spacecraft, othertimes he turns into a tank.
  • Evil Counterpart: To Alpha Trion, being a member of the Thirteen who associates himself with the Decepticons.
  • Evil Versus Oblivion: Sometimes, he turns out to be eviler than the Decepticons themselves, prompting them to turn on him.
  • Fallen Angel: The imagery he evokes, being the Prime who betrayed the others and was cast out. The fact that he usually appears Wreathed in Flames and sportingdark metallic colors only serves to amplify this imagery.
  • Greater-Scope Villain
  • Monster Progenitor: Sometimes, he is the first Decepticon.
  • Nepharious Pharaoh: Sometimes his robot mode sports a subtle Egyptian motif to evoke this imagery.
  • Satanic Archetype
  • That Man Is Dead: Megatronus' name was stricken from history when he betrayed the Thirteen, and he was thereon known only as The Fallen.
  • Villainous Legacy: In his betrayal of the others and being cast out, The Fallen became the first Decepticon. Some incarnations say his face was the inspiration for the Decepticon insignia, and almost universally Megatron took his name from The Fallen, once called Megatronus.
  • Wreathed in Flames: His design oftentimes has him engulfed in flames, if not having vents that radiate heat.


    Spike Witwicky 

Sam "Spike" Witwicky is often the main human ally of the Autobots on Earth. He's usually depicted as a young teenage boy.

  • Audience Surrogate: As a young man who gets to hang out with the Autobots and go on adventures with them, every kid would love to be in Spike's shoes.
  • Distressed Dude: Being a tiny, squishy human with no weapons or fighting prowess that can stand up to the giant robots, Spike tends to be endangered a lot.
  • Legacy Character: While Spike doesn't always appear in every incarnation of Transformers, there is often a human character comparable to him as the young human friend of the Autobots.
  • Only Known by Their Nickname: Maybe; the various adaptations aren't clear on when his given name is Sam and he's known by the nickname Spike, or when Spike is his given name.

    Nemesis Prime 

An evil incarnation of Optimus Prime that possesses power and courage comparable to Optimus, but holding none of his honor or morals.

  • Ax-Crazy: Freed of Optimus' restraint, Nemesis Prime is often just as big a war-monger as Megatron, if not moreso.
  • Depending on the Writer: Nemesis Prime's origin varies wildly across continuity. Sometimes, he is an evil clone of Optimus made by either the Decepticons or some other party, a long-lost Prime who became corrupted with power, or even the evil alter-ego of Optimus himself.
  • Evil Counterpart: Of Optimus Prime, naturally: Nemesis is what Optimus might become if he discarded his sense of honor and used his power for destructive purposes.
  • Eviler than Thou: It's not uncommon for Nemesis to make an enemy of Megatron as well as Optimus, since he usually wants to lead the Decepticons himself.
  • Evil Knockoff: He's usually cloned from Optimus in some manner, or is built to emulate him.
  • Legacy Character: Nemesis Prime doesn't always appear in every incarnation of Transformers, but when he doesn't it's still common for there to be some Decepticon that acts as a stand-in by having a semi-trailer truck alt mode to draw the same sort of parallel to Optimus, such as Motormaster or Scourge.
  • Red and Black and Evil All Over: His color scheme is a black and dark grey recolor of Optimus Prime's red and blue, and red eyes, windows, and weapons.

The role of the Quintessons vary in the series, but they are universally adversaries of the Transformers, Autobot and Decepticon alike. Their backstory tends to tie them to the creation of the Transformers, to Unicron, or both.
  • Ambiguous Robots: In some incarnations they're entirely mechanical, or implied to be, but other incarnations say they're organic beings encased in mechanical exosuits.
  • Depending on the Writer: Aside from being enemies to the Transformers regardless of faction, the role of the Quintessons varies from incarnation to incarnation.
  • Fridge Logic: invoked They exist to explain it; the Aligned continuity materials state that the reason many of the Transformers have cockpits or the like in their alt modes is because the Quintessons intended to sell them to other races, who would utilize such interfaces.
  • Kangaroo Court: They hold trials for their captives, during which they are not necessarily told what they're being charged with, they have no one to speak on their behalf, and the verdict of guilt or innocence is irrelevant to if the Quintessons intend to kill them or not. Actually tracing when they judge someone guilty or innocent shows no consistent pattern, so it is likely the Quintessons really are just holding the trials for their own amusement before doing what they want anyway.
  • Luke, I Am Your Father: The G1 cartoon revealed in "Five Faces of Darkness" that the Quintessons are the creators of the Transformers. Different adaptations may or may not retain this.
  • Mook: They have a massive army of Sharkticons they employ as their main soldiers.
  • Multiple Head Case: The leaders of the Quintessons, the Judges, have ovular bodies with five masks on it that each have their own distinct personality (which head represents what varies Depending on the Writer).
  • Non-Action Big Bad: While they're often a major threat, Quintessons aren't really fighters themselves and are easily overpowered.
  • No Name Given: Most media don't give individual Quintessons individual names and they are differentiated in out-of-universe materials by their roles in society.
  • Starfish Aliens: The Quintesson Judges have large bodies shaped like an upside down egg, on the sides of which rest their rotating faces, multiple tentacles extending from the bottom of their bodies, and if they don't use those tentacles to move around, they just float in place. Other Quintessons have more roughly humanoid forms, but still look rather odd.
  • Token Good Teammate: Usually, there is at least one Quintesson who is either not as bad as the rest of its race, or a genuine ally to the Transformers.

    The Thirteen Primes 

The Thirteen are the progenitors of the Transformer race, the first ones created by Primus eons ago. They are all Primes, designating them as the most powerful and honored of the Transformers. Their exact members vary between incarnations, but the usual lineup (known as the Covenant Thirteen) is as follows:

  • Depending on the Writer: The exact identities of the Thirteen tends to shift around between media. There are always at least a few key members you can be assured will be among them, but the rest are up in the air.
  • Disposable Woman: Solus Prime is usually killed off as part of Megatronus's Start of Darkness.
  • Monster Progenitor: Quintus Prime is responsible for the creation of the aforementioned Quintessons.
  • The Smurfette Principle: Solus Prime was the sole female among the Thirteen.
  • 13 Is Unlucky: In an obvious bit of Biblical symbolism, the Thirteen Primes were followers of the god Primus, and one of their number betrayed them and became The Fallen.
    • Inverted with the Thirteenth Prime himself, who (in most continuities) has turned out to be Optimus Prime.
  • Token Evil Teammate: Two — the Fallen, the traitor Prime who was cast out, and Liege Maximo, a scheming liar who manipulated the others to his own ends. Sometimes, Onyx Prime qualifies.
  • Transforming Mecha: Amalgamous Prime was the originator of the transformation cog that allows Cybertronians to transform.


The God of the Transformers. He originally created the first Transformers, the Thirteen Primes, to battle Unicron, and the race propagated in the name of defending the universe from Unicron. In modern times, Primus is the core of the planet Cybertron, and his essence lingers in the Spark of every Transformer, and in the Matrix of Leadership.

  • Big Good: As the God of the Transformer race and their creator.
  • Cain and Abel: He's the good Abel to Unicron's evil Cain.
  • Depending on the Writer: Sometimes, Primus has a more mundane origin as being merely the first Transformer rather than a deity. Though sometimes, these origins are combined.
  • Divine–Infernal Family: If portrayed as deities, he and Unicron are brothers.
  • Genius Loci: Most of the time, his alt mode is Cybertron.
  • God: Officially, he is one.
  • Humongous Mecha: In some media, not only is his consciousness housed within Cybertron, but Cybertron is his body that he can transform into a robot mode.


The Greater-Scope Villain of the franchise. Unicron is Primus' brother who desires the destruction of all reality. Taking the alt mode of a gigantic planet, Unicron travels the universe devouring anything in his path until all is extinguished.

  • Ancient Evil: In most continuities Unicron is the ultimate evil that has existed since the creation of the universe and seeks to destroy life across the universe.
  • The Anti-God: Primus' brother who seeks to destroy all existence and may make deals with lower beings or offer them power to make them his servants and corrupt them to his will. One of his servants is even the franchise Satanic Archetype.
  • Cain and Abel: The evil Cain to Primus' Abel.
  • Chaos Is Evil: He is also known by his epitaphs the Chaos Bringer and the Lord of Chaos, he's considered the universal/multiversal embodiment of both chaos and evil, in contrast to his twin and eternal arch-enemy Primus who embodies both order and good, and he's also an Omnicidal Maniac whose goal is to consume everything. The Transformers: Prime incarnation in particular was fond of making boasts that include the word "chaos".
  • Depending on the Writer: Sometimes, Unicron has a more mundane origin as the creation of a rogue alien scientist.
  • Divine–Infernal Family: If portrayed as deities, he and Primus are brothers.
  • Genius Loci: He turns into a planet.
  • Greater-Scope Villain: He is the highest evil ever seen in the franchise, but it's not all that often he gets involved in stories directly. When he does, it's usually a sign that particular incarnation of the franchise is about to end, since Unicron is the biggest threat a writer could pit the Transformers against and thus a battle with him would be suitable as a Grand Finale.
  • Humongous Mecha: He's a planet-sized Transformer.
  • Metal Muncher: A rather drastic example, as he regularly eats entire planets made of metal — along with the robotic inhabitants of said planets.
  • Planet Eater: His introduction to the series in the G1 movie has him devour a planet as a snack. Unicron tends to devour words both as sustanance and because he's an Omnicidal Maniac who wants to destroy existence.
  • Plot Hole: No, really. Unicron is a multiversal constant, existing in all timelines simultaneously as an embodiment of chaos and evil. However, in Armada it marks the first time Unicron is unambiguously killed and not simply defeated or sealed away. Because of this imbalance, it created the Unicron Singularity, which is officially credited for all inconsistencies across the Transformers franchise.
  • Spikes of Villainy: Unicorn is always adorned with lots of pointy bits, most iconically his horned head.